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Title: GitHub - grandyang/leetcode: Provide all my solutions and explanations in Chinese for all the Leetcode coding problems.

Open Graph Title: GitHub - grandyang/leetcode: Provide all my solutions and explanations in Chinese for all the Leetcode coding problems.

X Title: GitHub - grandyang/leetcode: Provide all my solutions and explanations in Chinese for all the Leetcode coding problems.

Description: Provide all my solutions and explanations in Chinese for all the Leetcode coding problems. - grandyang/leetcode

Open Graph Description: Provide all my solutions and explanations in Chinese for all the Leetcode coding problems. - grandyang/leetcode

X Description: Provide all my solutions and explanations in Chinese for all the Leetcode coding problems. - grandyang/leetcode

Opengraph URL: https://github.com/grandyang/leetcode

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README	https://github.com/grandyang/leetcode
	https://github.com/grandyang/leetcode#leetcode-all-in-one
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简体中文	https://github.com/grandyang/leetcode/blob/master/README-CN.md
LeetCode All in One 题目讲解汇总(持续更新中...)	https://www.cnblogs.com/grandyang/p/4606334.html
Click below image to watch YouTube Video	https://www.youtube.com/playlist?list=PLZFoAdzIur8ii06R2KsX7Mct2PEuUh0tc
	https://www.youtube.com/playlist?list=PLZFoAdzIur8ii06R2KsX7Mct2PEuUh0tc
Product of the Last K Numbers	https://github.com/grandyang/leetcode/issues/1352
Count Negative Numbers in a Sorted Matrix	https://github.com/grandyang/leetcode/issues/1351
Maximum Students Taking Exam	https://github.com/grandyang/leetcode/issues/1349
Tweet Counts Per Frequency	https://github.com/grandyang/leetcode/issues/1348
Minimum Number of Steps to Make Two Strings Anagram	https://github.com/grandyang/leetcode/issues/1347
Check If N and Its Double Exist	https://github.com/grandyang/leetcode/issues/1346
Jump Game IV	https://github.com/grandyang/leetcode/issues/1345
Angle Between Hands of a Clock	https://github.com/grandyang/leetcode/issues/1344
Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold	https://github.com/grandyang/leetcode/issues/1343
Number of Steps to Reduce a Number to Zero	https://github.com/grandyang/leetcode/issues/1342
Jump Game V	https://github.com/grandyang/leetcode/issues/1340
Maximum Product of Splitted Binary Tree	https://github.com/grandyang/leetcode/issues/1339
Reduce Array Size to The Half	https://github.com/grandyang/leetcode/issues/1338
The K Weakest Rows in a Matrix	https://github.com/grandyang/leetcode/issues/1337
Minimum Difficulty of a Job Schedule	https://github.com/grandyang/leetcode/issues/1335
Find the City With the Smallest Number of Neighbors at a Threshold Distance	https://github.com/grandyang/leetcode/issues/1334
Remove Palindromic Subsequences	https://github.com/grandyang/leetcode/issues/1332
Rank Transform of an Array	https://github.com/grandyang/leetcode/issues/1331
Reverse Subarray To Maximize Array Value	https://github.com/grandyang/leetcode/issues/1330
Sort the Matrix Diagonally	https://github.com/grandyang/leetcode/issues/1329
Break a Palindrome	https://github.com/grandyang/leetcode/issues/1328
Minimum Number of Taps to Open to Water a Garden	https://github.com/grandyang/leetcode/issues/1326
Delete Leaves With a Given Value	https://github.com/grandyang/leetcode/issues/1325
Print Words Vertically	https://github.com/grandyang/leetcode/issues/1324
Maximum 69 Number	https://github.com/grandyang/leetcode/issues/1323
Minimum Distance to Type a Word Using Two Fingers	https://github.com/grandyang/leetcode/issues/1320
Number of Operations to Make Network Connected	https://github.com/grandyang/leetcode/issues/1319
Minimum Flips to Make a OR b Equal to c	https://github.com/grandyang/leetcode/issues/1318
Convert Integer to the Sum of Two No-Zero Integers	https://github.com/grandyang/leetcode/issues/1317
Distinct Echo Substrings	https://github.com/grandyang/leetcode/issues/1316
Sum of Nodes with Even-Valued Grandparent	https://github.com/grandyang/leetcode/issues/1315
Matrix Block Sum	https://github.com/grandyang/leetcode/issues/1314
Decompress Run-Length Encoded List	https://github.com/grandyang/leetcode/issues/1313
Minimum Insertion Steps to Make a String Palindrome	https://github.com/grandyang/leetcode/issues/1312
Get Watched Videos by Your Friends	https://github.com/grandyang/leetcode/issues/1311
XOR Queries of a Subarray	https://github.com/grandyang/leetcode/issues/1310
Decrypt String from Alphabet to Integer Mapping	https://github.com/grandyang/leetcode/issues/1309
Verbal Arithmetic Puzzle	https://github.com/grandyang/leetcode/issues/1307
Jump Game III	https://github.com/grandyang/leetcode/issues/1306
All Elements in Two Binary Search Trees	https://github.com/grandyang/leetcode/issues/1305
Find N Unique Integers Sum up to Zero	https://github.com/grandyang/leetcode/issues/1304
Deepest Leaves Sum	https://github.com/grandyang/leetcode/issues/1302
Number of Paths with Max Score	https://github.com/grandyang/leetcode/issues/1301
Sum of Mutated Array Closest to Target	https://github.com/grandyang/leetcode/issues/1300
Replace Elements with Greatest Element on Right Side	https://github.com/grandyang/leetcode/issues/1299
Maximum Candies You Can Get from Boxes	https://github.com/grandyang/leetcode/issues/1298
Maximum Number of Occurrences of a Substring	https://github.com/grandyang/leetcode/issues/1297
Divide Array in Sets of K Consecutive Numbers	https://github.com/grandyang/leetcode/issues/1296
Find Numbers with Even Number of Digits	https://github.com/grandyang/leetcode/issues/1295
Shortest Path in a Grid with Obstacles Elimination	https://github.com/grandyang/leetcode/issues/1293
Maximum Side Length of a Square with Sum Less than or Equal to Threshold	https://github.com/grandyang/leetcode/issues/1292
Sequential Digits	https://github.com/grandyang/leetcode/issues/1291
Convert Binary Number in a Linked List to Integer	https://github.com/grandyang/leetcode/issues/1290
Minimum Falling Path Sum II	https://github.com/grandyang/leetcode/issues/1289
Remove Covered Intervals	https://github.com/grandyang/leetcode/issues/1288
Element Appearing More Than 25% In Sorted Array	https://github.com/grandyang/leetcode/issues/1287
Iterator for Combination	https://github.com/grandyang/leetcode/issues/1286
Minimum Number of Flips to Convert Binary Matrix to Zero Matrix	https://github.com/grandyang/leetcode/issues/1284
Find the Smallest Divisor Given a Threshold	https://github.com/grandyang/leetcode/issues/1283
Group the People Given the Group Size They Belong To	https://github.com/grandyang/leetcode/issues/1282
Subtract the Product and Sum of Digits of an Integer	https://github.com/grandyang/leetcode/issues/1281
Palindrome Partitioning III	https://github.com/grandyang/leetcode/issues/1278
Count Square Submatrices with All Ones	https://github.com/grandyang/leetcode/issues/1277
Number of Burgers with No Waste of Ingredients	https://github.com/grandyang/leetcode/issues/1276
Find Winner on a Tic Tac Toe Game	https://github.com/grandyang/leetcode/issues/1275
Number of Ways to Stay in the Same Place After Some Steps	https://github.com/grandyang/leetcode/issues/1269
Search Suggestions System	https://github.com/grandyang/leetcode/issues/1268
Minimum Time Visiting All Points	https://github.com/grandyang/leetcode/issues/1266
Minimum Moves to Move a Box to Their Target Location	https://github.com/grandyang/leetcode/issues/1263
Greatest Sum Divisible by Three	https://github.com/grandyang/leetcode/issues/1262
Find Elements in a Contaminated Binary Tree	https://github.com/grandyang/leetcode/issues/1261
Shift 2D Grid	https://github.com/grandyang/leetcode/issues/1260
Maximum Score Words Formed by Letters	https://github.com/grandyang/leetcode/issues/1255
Number of Closed Islands	https://github.com/grandyang/leetcode/issues/1254
Reconstruct a 2-Row Binary Matrix	https://github.com/grandyang/leetcode/issues/1253
Cells with Odd Values in a Matrix	https://github.com/grandyang/leetcode/issues/1252
Check If It Is a Good Array	https://github.com/grandyang/leetcode/issues/1250
Minimum Remove to Make Valid Parentheses	https://github.com/grandyang/leetcode/issues/1249
Count Number of Nice Subarrays	https://github.com/grandyang/leetcode/issues/1248
Minimum Swaps to Make Strings Equal	https://github.com/grandyang/leetcode/issues/1247
Tiling a Rectangle with the Fewest Squares	https://github.com/grandyang/leetcode/issues/1240
Maximum Length of a Concatenated String with Unique Characters	https://github.com/grandyang/leetcode/issues/1239
Circular Permutation in Binary Representation	https://github.com/grandyang/leetcode/issues/1238
Find Positive Integer Solution for a Given Equation	https://github.com/grandyang/leetcode/issues/1237
Maximum Profit in Job Scheduling	https://github.com/grandyang/leetcode/issues/1235
Replace the Substring for Balanced String	https://github.com/grandyang/leetcode/issues/1234
Remove Sub-Folders from the Filesystem	https://github.com/grandyang/leetcode/issues/1233
Check If It Is a Straight Line	https://github.com/grandyang/leetcode/issues/1232
Airplane Seat Assignment Probability	https://github.com/grandyang/leetcode/issues/1227
Maximum Equal Frequency	https://github.com/grandyang/leetcode/issues/1224
Dice Roll Simulation	https://github.com/grandyang/leetcode/issues/1223
Queens That Can Attack the King	https://github.com/grandyang/leetcode/issues/1222
Split a String in Balanced Strings	https://github.com/grandyang/leetcode/issues/1221
Count Vowels Permutation	https://github.com/grandyang/leetcode/issues/1220
Path with Maximum Gold	https://github.com/grandyang/leetcode/issues/1219
Longest Arithmetic Subsequence of Given Difference	https://github.com/grandyang/leetcode/issues/1218
Minimum Cost to Move Chips to The Same Position	https://github.com/grandyang/leetcode/issues/1217
Minimum Moves to Reach Target with Rotations	https://github.com/grandyang/leetcode/issues/1210
Remove All Adjacent Duplicates in String II	https://github.com/grandyang/leetcode/issues/1209
Get Equal Substrings Within Budget	https://github.com/grandyang/leetcode/issues/1208
Unique Number of Occurrences	https://github.com/grandyang/leetcode/issues/1207
Design Skiplist	https://github.com/grandyang/leetcode/issues/1206
Sort Items by Groups Respecting Dependencies	https://github.com/grandyang/leetcode/issues/1203
Smallest String With Swaps	https://github.com/grandyang/leetcode/issues/1202
Ugly Number III	https://github.com/grandyang/leetcode/issues/1201
Minimum Absolute Difference	https://github.com/grandyang/leetcode/issues/1200
Critical Connections in a Network	https://github.com/grandyang/leetcode/issues/1192
K-Concatenation Maximum Sum	https://github.com/grandyang/leetcode/issues/1191
Reverse Substrings Between Each Pair of Parentheses	https://github.com/grandyang/leetcode/issues/1190
Maximum Number of Balloons	https://github.com/grandyang/leetcode/issues/1189
Make Array Strictly Increasing	https://github.com/grandyang/leetcode/issues/1187
Maximum Subarray Sum with One Deletion	https://github.com/grandyang/leetcode/issues/1186
Day of the Week	https://github.com/grandyang/leetcode/issues/1185
Distance Between Bus Stops	https://github.com/grandyang/leetcode/issues/1184
Number of Valid Words for Each Puzzle	https://github.com/grandyang/leetcode/issues/1178
Can Make Palindrome from Substring	https://github.com/grandyang/leetcode/issues/1177
Prime Arrangements	https://github.com/grandyang/leetcode/issues/1175
Dinner Plate Stacks	https://github.com/grandyang/leetcode/issues/1172
Remove Zero Sum Consecutive Nodes from Linked List	https://github.com/grandyang/leetcode/issues/1171
Compare Strings by Frequency of the Smallest Character	https://github.com/grandyang/leetcode/issues/1170
Invalid Transactions	https://github.com/grandyang/leetcode/issues/1169
Last Substring in Lexicographical Order	https://github.com/grandyang/leetcode/issues/1163
As Far from Land as Possible	https://github.com/grandyang/leetcode/issues/1162
Maximum Level Sum of a Binary Tree	https://github.com/grandyang/leetcode/issues/1161
Find Words That Can Be Formed by Characters	https://github.com/grandyang/leetcode/issues/1160
Online Majority Element In Subarray	https://github.com/grandyang/leetcode/issues/1157
Swap For Longest Repeated Character Substring	https://github.com/grandyang/leetcode/issues/1156
Number of Dice Rolls With Target Sum	https://github.com/grandyang/leetcode/issues/1155
Day of the Year	https://github.com/grandyang/leetcode/issues/1154
Longest Chunked Palindrome Decomposition	https://github.com/grandyang/leetcode/issues/1147
Snapshot Array	https://github.com/grandyang/leetcode/issues/1146
Binary Tree Coloring Game	https://github.com/grandyang/leetcode/issues/1145
Decrease Elements To Make Array Zigzag	https://github.com/grandyang/leetcode/issues/1144
Longest Common Subsequence	https://github.com/grandyang/leetcode/issues/1143
Stone Game II	https://github.com/grandyang/leetcode/issues/1140
Largest 1-Bordered Square	https://github.com/grandyang/leetcode/issues/1139
Alphabet Board Path	https://github.com/grandyang/leetcode/issues/1138
N-th Tribonacci Number	https://github.com/grandyang/leetcode/issues/1137
Maximum of Absolute Value Expression	https://github.com/grandyang/leetcode/issues/1131
Minimum Cost Tree From Leaf Values	https://github.com/grandyang/leetcode/issues/1130
Shortest Path with Alternating Colors	https://github.com/grandyang/leetcode/issues/1129
Number of Equivalent Domino Pairs	https://github.com/grandyang/leetcode/issues/1128
Smallest Sufficient Team	https://github.com/grandyang/leetcode/issues/1125
Longest Well-Performing Interval	https://github.com/grandyang/leetcode/issues/1124
Lowest Common Ancestor of Deepest Leaves	https://github.com/grandyang/leetcode/issues/1123
Relative Sort Array	https://github.com/grandyang/leetcode/issues/1122
Maximum Nesting Depth of Two Valid Parentheses Strings	https://github.com/grandyang/leetcode/issues/1111
Delete Nodes And Return Forest	https://github.com/grandyang/leetcode/issues/1110
Corporate Flight Bookings	https://github.com/grandyang/leetcode/issues/1109
Defanging an IP Address	https://github.com/grandyang/leetcode/issues/1108
Parsing A Boolean Expression	https://github.com/grandyang/leetcode/issues/1106
Filling Bookcase Shelves	https://github.com/grandyang/leetcode/issues/1105
Path In Zigzag Labelled Binary Tree	https://github.com/grandyang/leetcode/issues/1104
Distribute Candies to People	https://github.com/grandyang/leetcode/issues/1103
Brace Expansion II	https://github.com/grandyang/leetcode/issues/1096
Find in Mountain Array	https://github.com/grandyang/leetcode/issues/1095
Car Pooling	https://github.com/grandyang/leetcode/issues/1094
Statistics from a Large Sample	https://github.com/grandyang/leetcode/issues/1093
Shortest Common Supersequence	https://github.com/grandyang/leetcode/issues/1092
Shortest Path in Binary Matrix	https://github.com/grandyang/leetcode/issues/1091
Largest Values From Labels	https://github.com/grandyang/leetcode/issues/1090
Duplicate Zeros	https://github.com/grandyang/leetcode/issues/1089
Confusing Number II	https://github.com/grandyang/leetcode/issues/1088
Smallest Subsequence of Distinct Characters	https://github.com/grandyang/leetcode/issues/1081
Insufficient Nodes in Root to Leaf Paths	https://github.com/grandyang/leetcode/issues/1080
Letter Tile Possibilities	https://github.com/grandyang/leetcode/issues/1079
Occurrences After Bigram	https://github.com/grandyang/leetcode/issues/1078
Number of Submatrices That Sum to Target	https://github.com/grandyang/leetcode/issues/1074
Adding Two Negabinary Numbers	https://github.com/grandyang/leetcode/issues/1073
Flip Columns For Maximum Number of Equal Rows	https://github.com/grandyang/leetcode/issues/1072
Greatest Common Divisor of Strings	https://github.com/grandyang/leetcode/issues/1071
Campus Bikes	https://github.com/grandyang/leetcode/issues/1057
Confusing Number	https://github.com/grandyang/leetcode/issues/1056
Shortest Way to Form String	https://github.com/grandyang/leetcode/issues/1055
Distant Barcodes	https://github.com/grandyang/leetcode/issues/1054
Previous Permutation With One Swap	https://github.com/grandyang/leetcode/issues/1053
Grumpy Bookstore Owner	https://github.com/grandyang/leetcode/issues/1052
Height Checker	https://github.com/grandyang/leetcode/issues/1051
Last Stone Weight II	https://github.com/grandyang/leetcode/issues/1049
Longest String Chain	https://github.com/grandyang/leetcode/issues/1048
Remove All Adjacent Duplicates In String	https://github.com/grandyang/leetcode/issues/1047
Last Stone Weight	https://github.com/grandyang/leetcode/issues/1046
Longest Duplicate Substring	https://github.com/grandyang/leetcode/issues/1044
Partition Array for Maximum Sum	https://github.com/grandyang/leetcode/issues/1043
Flower Planting With No Adjacent	https://github.com/grandyang/leetcode/issues/1042
Robot Bounded In Circle	https://github.com/grandyang/leetcode/issues/1041
Moving Stones Until Consecutive II	https://github.com/grandyang/leetcode/issues/1040
Minimum Score Triangulation of Polygon	https://github.com/grandyang/leetcode/issues/1039
Binary Search Tree to Greater Sum Tree	https://github.com/grandyang/leetcode/issues/1038
Valid Boomerang	https://github.com/grandyang/leetcode/issues/1037
Escape a Large Maze	https://github.com/grandyang/leetcode/issues/1036
Uncrossed Lines	https://github.com/grandyang/leetcode/issues/1035
Coloring A Border	https://github.com/grandyang/leetcode/issues/1034
Moving Stones Until Consecutive	https://github.com/grandyang/leetcode/issues/1033
Stream of Characters	https://github.com/grandyang/leetcode/issues/1032
Maximum Sum of Two Non-Overlapping Subarrays	https://github.com/grandyang/leetcode/issues/1031
Matrix Cells in Distance Order	https://github.com/grandyang/leetcode/issues/1030
Two City Scheduling	https://github.com/grandyang/leetcode/issues/1029
Recover a Tree From Preorder Traversal	https://github.com/grandyang/leetcode/issues/1028
Longest Arithmetic Subsequence	https://github.com/grandyang/leetcode/issues/1027
Maximum Difference Between Node and Ancestor	https://github.com/grandyang/leetcode/issues/1026
Divisor Game	https://github.com/grandyang/leetcode/issues/1025
Video Stitching	https://github.com/grandyang/leetcode/issues/1024
Camelcase Matching	https://github.com/grandyang/leetcode/issues/1023
Sum of Root To Leaf Binary Numbers	https://github.com/grandyang/leetcode/issues/1022
Remove Outermost Parentheses	https://github.com/grandyang/leetcode/issues/1021
Number of Enclaves	https://github.com/grandyang/leetcode/issues/1020
Next Greater Node In Linked List	https://github.com/grandyang/leetcode/issues/1019
Binary Prefix Divisible By 5	https://github.com/grandyang/leetcode/issues/1018
Convert to Base -2	https://github.com/grandyang/leetcode/issues/1017
Binary String With Substrings Representing 1 To N	https://github.com/grandyang/leetcode/issues/1016
Smallest Integer Divisible by K	https://github.com/grandyang/leetcode/issues/1015
Best Sightseeing Pair	https://github.com/grandyang/leetcode/issues/1014
Partition Array Into Three Parts With Equal Sum	https://github.com/grandyang/leetcode/issues/1013
Numbers With Repeated Digits	https://github.com/grandyang/leetcode/issues/1012
Capacity To Ship Packages Within D Days	https://github.com/grandyang/leetcode/issues/1011
Pairs of Songs With Total Durations Divisible by 60	https://github.com/grandyang/leetcode/issues/1010
Complement of Base 10 Integer	https://github.com/grandyang/leetcode/issues/1009
Construct Binary Search Tree from Preorder Traversal	https://github.com/grandyang/leetcode/issues/1008
Minimum Domino Rotations For Equal Row	https://github.com/grandyang/leetcode/issues/1007
Clumsy Factorial	https://github.com/grandyang/leetcode/issues/1006
Maximize Sum Of Array After K Negations	https://github.com/grandyang/leetcode/issues/1005
Max Consecutive Ones III	https://github.com/grandyang/leetcode/issues/1004
Check If Word Is Valid After Substitutions	https://github.com/grandyang/leetcode/issues/1003
Find Common Characters	https://github.com/grandyang/leetcode/issues/1002
Grid Illumination	https://github.com/grandyang/leetcode/issues/1001
Minimum Cost to Merge Stones	https://github.com/grandyang/leetcode/issues/1000
Available Captures for Rook	https://github.com/grandyang/leetcode/issues/999
Maximum Binary Tree II	https://github.com/grandyang/leetcode/issues/998
Find the Town Judge	https://github.com/grandyang/leetcode/issues/997
Number of Squareful Arrays	https://github.com/grandyang/leetcode/issues/996
Minimum Number of K Consecutive Bit Flips	https://github.com/grandyang/leetcode/issues/995
Rotting Oranges	https://github.com/grandyang/leetcode/issues/994
Cousins in Binary Tree	https://github.com/grandyang/leetcode/issues/993
Subarrays with K Different Integers	https://github.com/grandyang/leetcode/issues/992
Broken Calculator	https://github.com/grandyang/leetcode/issues/991
Satisfiability of Equality Equations	https://github.com/grandyang/leetcode/issues/990
Add to Array-Form of Integer	https://github.com/grandyang/leetcode/issues/989
Smallest String Starting From Leaf	https://github.com/grandyang/leetcode/issues/988
Vertical Order Traversal of a Binary Tree	https://github.com/grandyang/leetcode/issues/987
Interval List Intersections	https://github.com/grandyang/leetcode/issues/986
Sum of Even Numbers After Queries	https://github.com/grandyang/leetcode/issues/985
String Without AAA or BBB	https://github.com/grandyang/leetcode/issues/984
Minimum Cost For Tickets	https://github.com/grandyang/leetcode/issues/983
Triples with Bitwise AND Equal To Zero	https://github.com/grandyang/leetcode/issues/982
Time Based Key-Value Store	https://github.com/grandyang/leetcode/issues/981
Unique Paths III	https://github.com/grandyang/leetcode/issues/980
Distribute Coins in Binary Tree	https://github.com/grandyang/leetcode/issues/979
Longest Turbulent Subarray	https://github.com/grandyang/leetcode/issues/978
Squares of a Sorted Array	https://github.com/grandyang/leetcode/issues/977
Largest Perimeter Triangle	https://github.com/grandyang/leetcode/issues/976
Odd Even Jump	https://github.com/grandyang/leetcode/issues/975
Subarray Sums Divisible by K	https://github.com/grandyang/leetcode/issues/974
K Closest Points to Origin	https://github.com/grandyang/leetcode/issues/973
Equal Rational Numbers	https://github.com/grandyang/leetcode/issues/972
Flip Binary Tree To Match Preorder Traversal	https://github.com/grandyang/leetcode/issues/971
Powerful Integers	https://github.com/grandyang/leetcode/issues/970
Pancake Sorting	https://github.com/grandyang/leetcode/issues/969
Binary Tree Cameras	https://github.com/grandyang/leetcode/issues/968
Numbers With Same Consecutive Differences	https://github.com/grandyang/leetcode/issues/967
Vowel Spellchecker	https://github.com/grandyang/leetcode/issues/966
Univalued Binary Tree	https://github.com/grandyang/leetcode/issues/965
Least Operators to Express Number	https://github.com/grandyang/leetcode/issues/964
Minimum Area Rectangle II	https://github.com/grandyang/leetcode/issues/963
Maximum Width Ramp	https://github.com/grandyang/leetcode/issues/962
N-Repeated Element in Size 2N Array	https://github.com/grandyang/leetcode/issues/961
Delete Columns to Make Sorted III	https://github.com/grandyang/leetcode/issues/960
Regions Cut By Slashes	https://github.com/grandyang/leetcode/issues/959
Check Completeness of a Binary Tree	https://github.com/grandyang/leetcode/issues/958
Prison Cells After N Days	https://github.com/grandyang/leetcode/issues/957
Tallest Billboard	https://github.com/grandyang/leetcode/issues/956
Delete Columns to Make Sorted II	https://github.com/grandyang/leetcode/issues/955
Array of Doubled Pairs	https://github.com/grandyang/leetcode/issues/954
Verifying an Alien Dictionary	https://github.com/grandyang/leetcode/issues/953
Largest Component Size by Common Factor	https://github.com/grandyang/leetcode/issues/952
Flip Equivalent Binary Trees	https://github.com/grandyang/leetcode/issues/951
Reveal Cards In Increasing Order	https://github.com/grandyang/leetcode/issues/950
Largest Time for Given Digits	https://github.com/grandyang/leetcode/issues/949
Bag of Tokens	https://github.com/grandyang/leetcode/issues/948
Most Stones Removed with Same Row or Column	https://github.com/grandyang/leetcode/issues/947
Validate Stack Sequences	https://github.com/grandyang/leetcode/issues/946
Minimum Increment to Make Array Unique	https://github.com/grandyang/leetcode/issues/945
Delete Columns to Make Sorted	https://github.com/grandyang/leetcode/issues/944
Find the Shortest Superstring	https://github.com/grandyang/leetcode/issues/943
DI String Match	https://github.com/grandyang/leetcode/issues/942
Valid Mountain Array	https://github.com/grandyang/leetcode/issues/941
Distinct Subsequences II	https://github.com/grandyang/leetcode/issues/940
Minimum Area Rectangle	https://github.com/grandyang/leetcode/issues/939
Range Sum of BST	https://github.com/grandyang/leetcode/issues/938
Reorder Data in Log Files	https://github.com/grandyang/leetcode/issues/937
Stamping The Sequence	https://github.com/grandyang/leetcode/issues/936
Knight Dialer	https://github.com/grandyang/leetcode/issues/935
Shortest Bridge	https://github.com/grandyang/leetcode/issues/934
Number of Recent Calls	https://github.com/grandyang/leetcode/issues/933
Beautiful Array	https://github.com/grandyang/leetcode/issues/932
Minimum Falling Path Sum	https://github.com/grandyang/leetcode/issues/931
Binary Subarrays With Sum	https://github.com/grandyang/leetcode/issues/930
Unique Email Addresses	https://github.com/grandyang/leetcode/issues/929
Minimize Malware Spread II	https://github.com/grandyang/leetcode/issues/928
Three Equal Parts	https://github.com/grandyang/leetcode/issues/927
Flip String to Monotone Increasing	https://github.com/grandyang/leetcode/issues/926
Long Pressed Name	https://github.com/grandyang/leetcode/issues/925
Minimize Malware Spread	https://github.com/grandyang/leetcode/issues/924
3Sum With Multiplicity	https://github.com/grandyang/leetcode/issues/923
Sort Array By Parity II	https://github.com/grandyang/leetcode/issues/922
Minimum Add to Make Parentheses Valid	https://github.com/grandyang/leetcode/issues/921
Number of Music Playlists	https://github.com/grandyang/leetcode/issues/920
Complete Binary Tree Inserter	https://github.com/grandyang/leetcode/issues/919
Maximum Sum Circular Subarray	https://github.com/grandyang/leetcode/issues/918
Reverse Only Letters	https://github.com/grandyang/leetcode/issues/917
Word Subsets	https://github.com/grandyang/leetcode/issues/916
Partition Array into Disjoint Intervals	https://github.com/grandyang/leetcode/issues/915
X of a Kind in a Deck of Cards	https://github.com/grandyang/leetcode/issues/914
Cat and Mouse	https://github.com/grandyang/leetcode/issues/913
Sort an Array	https://github.com/grandyang/leetcode/issues/912
Online Election	https://github.com/grandyang/leetcode/issues/911
Smallest Range II	https://github.com/grandyang/leetcode/issues/910
Snakes and Ladders	https://github.com/grandyang/leetcode/issues/909
Smallest Range I	https://github.com/grandyang/leetcode/issues/908
Sum of Subarray Minimums	https://github.com/grandyang/leetcode/issues/907
Super Palindromes	https://github.com/grandyang/leetcode/issues/906
Sort Array By Parity	https://github.com/grandyang/leetcode/issues/905
Fruit Into Baskets	https://github.com/grandyang/leetcode/issues/904
Valid Permutations for DI Sequence	https://github.com/grandyang/leetcode/issues/903
Numbers At Most N Given Digit Set	https://github.com/grandyang/leetcode/issues/902
Online Stock Span	https://github.com/grandyang/leetcode/issues/901
RLE Iterator	https://github.com/grandyang/leetcode/issues/900
Orderly Queue	https://github.com/grandyang/leetcode/issues/899
Bitwise ORs of Subarrays	https://github.com/grandyang/leetcode/issues/898
Increasing Order Search Tree	https://github.com/grandyang/leetcode/issues/897
Monotonic Array	https://github.com/grandyang/leetcode/issues/896
Maximum Frequency Stack	https://github.com/grandyang/leetcode/issues/895
All Possible Full Binary Trees	https://github.com/grandyang/leetcode/issues/894
Groups of Special-Equivalent Strings	https://github.com/grandyang/leetcode/issues/893
Surface Area of 3D Shapes	https://github.com/grandyang/leetcode/issues/892
Sum of Subsequence Widths	https://github.com/grandyang/leetcode/issues/891
Find and Replace Pattern	https://github.com/grandyang/leetcode/issues/890
Construct Binary Tree from Preorder and Postorder Traversal	https://github.com/grandyang/leetcode/issues/889
Fair Candy Swap	https://github.com/grandyang/leetcode/issues/888
Super Egg Drop	https://github.com/grandyang/leetcode/issues/887
Possible Bipartition	https://github.com/grandyang/leetcode/issues/886
Spiral Matrix III	https://github.com/grandyang/leetcode/issues/885
Uncommon Words from Two Sentences	https://github.com/grandyang/leetcode/issues/884
Projection Area of 3D Shapes	https://github.com/grandyang/leetcode/issues/883
Reachable Nodes In Subdivided Graph	https://github.com/grandyang/leetcode/issues/882
Boats to Save People	https://github.com/grandyang/leetcode/issues/881
Decoded String at Index	https://github.com/grandyang/leetcode/issues/880
Profitable Schemes	https://github.com/grandyang/leetcode/issues/879
Nth Magical Number	https://github.com/grandyang/leetcode/issues/878
Stone Game	https://github.com/grandyang/leetcode/issues/877
Middle of the Linked List	https://github.com/grandyang/leetcode/issues/876
Koko Eating Bananas	https://github.com/grandyang/leetcode/issues/875
Walking Robot Simulation	https://github.com/grandyang/leetcode/issues/874
Length of Longest Fibonacci Subsequence	https://github.com/grandyang/leetcode/issues/873
Leaf-Similar Trees	https://github.com/grandyang/leetcode/issues/872
Minimum Number of Refueling Stops	https://github.com/grandyang/leetcode/issues/871
Advantage Shuffle	https://github.com/grandyang/leetcode/issues/870
Reordered Power of 2	https://github.com/grandyang/leetcode/issues/869
Binary Gap	https://github.com/grandyang/leetcode/issues/868
Transpose Matrix	https://github.com/grandyang/leetcode/issues/867
Prime Palindrome	https://github.com/grandyang/leetcode/issues/866
Smallest Subtree with all the Deepest Nodes	https://github.com/grandyang/leetcode/issues/865
Shortest Path to Get All Keys	https://github.com/grandyang/leetcode/issues/864
All Nodes Distance K in Binary Tree	https://github.com/grandyang/leetcode/issues/863
Shortest Subarray with Sum at Least K	https://github.com/grandyang/leetcode/issues/862
Score After Flipping Matrix	https://github.com/grandyang/leetcode/issues/861
Lemonade Change	https://github.com/grandyang/leetcode/issues/860
Buddy Strings	https://github.com/grandyang/leetcode/issues/859
Mirror Reflection	https://github.com/grandyang/leetcode/issues/858
Minimum Cost to Hire K Workers	https://github.com/grandyang/leetcode/issues/857
Score of Parentheses	https://github.com/grandyang/leetcode/issues/856
Exam Room	https://github.com/grandyang/leetcode/issues/855
K-Similar Strings	https://github.com/grandyang/leetcode/issues/854
Car Fleet	https://github.com/grandyang/leetcode/issues/853
Peak Index in a Mountain Array	https://github.com/grandyang/leetcode/issues/852
Loud and Rich	https://github.com/grandyang/leetcode/issues/851
Rectangle Area II	https://github.com/grandyang/leetcode/issues/850
Maximize Distance to Closest Person	https://github.com/grandyang/leetcode/issues/849
Shifting Letters	https://github.com/grandyang/leetcode/issues/848
Shortest Path Visiting All Nodes	https://github.com/grandyang/leetcode/issues/847
Hand of Straights	https://github.com/grandyang/leetcode/issues/846
Longest Mountain in Array	https://github.com/grandyang/leetcode/issues/845
Backspace String Compare	https://github.com/grandyang/leetcode/issues/844
Guess the Word	https://github.com/grandyang/leetcode/issues/843
Split Array into Fibonacci Sequence	https://github.com/grandyang/leetcode/issues/842
Keys and Rooms	https://github.com/grandyang/leetcode/issues/841
Magic Squares In Grid	https://github.com/grandyang/leetcode/issues/840
Similar String Groups	https://github.com/grandyang/leetcode/issues/839
Push Dominoes	https://github.com/grandyang/leetcode/issues/838
New 21 Game	https://github.com/grandyang/leetcode/issues/837
Rectangle Overlap	https://github.com/grandyang/leetcode/issues/836
Image Overlap	https://github.com/grandyang/leetcode/issues/835
Sum of Distances in Tree	https://github.com/grandyang/leetcode/issues/834
Find And Replace in String	https://github.com/grandyang/leetcode/issues/833
Flipping an Image	https://github.com/grandyang/leetcode/issues/832
Masking Personal Information	https://github.com/grandyang/leetcode/issues/831
Positions of Large Groups	https://github.com/grandyang/leetcode/issues/830
Consecutive Numbers Sum	https://github.com/grandyang/leetcode/issues/829
Unique Letter String	https://github.com/grandyang/leetcode/issues/828
Making A Large Island	https://github.com/grandyang/leetcode/issues/827
Most Profit Assigning Work	https://github.com/grandyang/leetcode/issues/826
Friends Of Appropriate Ages	https://github.com/grandyang/leetcode/issues/825
Goat Latin	https://github.com/grandyang/leetcode/issues/824
Binary Trees With Factors	https://github.com/grandyang/leetcode/issues/823
Card Flipping Game	https://github.com/grandyang/leetcode/issues/822
Shortest Distance to a Character	https://github.com/grandyang/leetcode/issues/821
Short Encoding of Words	https://github.com/grandyang/leetcode/issues/820
Most Common Word	https://github.com/grandyang/leetcode/issues/819
Race Car	https://github.com/grandyang/leetcode/issues/818
Linked List Components	https://github.com/grandyang/leetcode/issues/817
Ambiguous Coordinates	https://github.com/grandyang/leetcode/issues/816
Bus Routes	https://github.com/grandyang/leetcode/issues/815
Binary Tree Pruning	https://github.com/grandyang/leetcode/issues/814
Largest Sum of Averages	https://github.com/grandyang/leetcode/issues/813
Largest Triangle Area	https://github.com/grandyang/leetcode/issues/812
Subdomain Visit Count	https://github.com/grandyang/leetcode/issues/811
Chalkboard XOR Game	https://github.com/grandyang/leetcode/issues/810
Expressive Words	https://github.com/grandyang/leetcode/issues/809
Soup Servings	https://github.com/grandyang/leetcode/issues/808
Max Increase to Keep City Skyline	https://github.com/grandyang/leetcode/issues/807
Number of Lines To Write String	https://github.com/grandyang/leetcode/issues/806
Split Array With Same Average	https://github.com/grandyang/leetcode/issues/805
Unique Morse Code Words	https://github.com/grandyang/leetcode/issues/804
Bricks Falling When Hit	https://github.com/grandyang/leetcode/issues/803
Find Eventual Safe States	https://github.com/grandyang/leetcode/issues/802
Minimum Swaps To Make Sequences Increasing	https://github.com/grandyang/leetcode/issues/801
Similar RGB Color	https://github.com/grandyang/leetcode/issues/800
Champagne Tower	https://github.com/grandyang/leetcode/issues/799
Smallest Rotation with Highest Score	https://github.com/grandyang/leetcode/issues/798
All Paths From Source to Target	https://github.com/grandyang/leetcode/issues/797
Rotate String	https://github.com/grandyang/leetcode/issues/796
Number of Subarrays with Bounded Maximum	https://github.com/grandyang/leetcode/issues/795
Valid Tic-Tac-Toe State	https://github.com/grandyang/leetcode/issues/794
Preimage Size of Factorial Zeroes Function	https://github.com/grandyang/leetcode/issues/793
Number of Matching Subsequences	https://github.com/grandyang/leetcode/issues/792
Custom Sort String	https://github.com/grandyang/leetcode/issues/791
Domino and Tromino Tiling	https://github.com/grandyang/leetcode/issues/790
Escape The Ghosts	https://github.com/grandyang/leetcode/issues/789
Rotated Digits	https://github.com/grandyang/leetcode/issues/788
Cheapest Flights Within K Stops	https://github.com/grandyang/leetcode/issues/787
K-th Smallest Prime Fraction	https://github.com/grandyang/leetcode/issues/786
Is Graph Bipartite	https://github.com/grandyang/leetcode/issues/785
Letter Case Permutation	https://github.com/grandyang/leetcode/issues/784
Minimum Distance Between BST Nodes	https://github.com/grandyang/leetcode/issues/783
Transform to Chessboard	https://github.com/grandyang/leetcode/issues/782
Rabbits in Forest	https://github.com/grandyang/leetcode/issues/781
Reaching Points	https://github.com/grandyang/leetcode/issues/780
K-th Symbol in Grammar	https://github.com/grandyang/leetcode/issues/779
Swim in Rising Water	https://github.com/grandyang/leetcode/issues/778
Swap Adjacent in LR String	https://github.com/grandyang/leetcode/issues/777
Split BST	https://github.com/grandyang/leetcode/issues/776
Global and Local Inversions	https://github.com/grandyang/leetcode/issues/775
Minimize Max Distance to Gas Station	https://github.com/grandyang/leetcode/issues/774
Sliding Puzzle	https://github.com/grandyang/leetcode/issues/773
Basic Calculator III	https://github.com/grandyang/leetcode/issues/772
Jewels and Stones	https://github.com/grandyang/leetcode/issues/771
Max Chunks To Make Sorted	https://github.com/grandyang/leetcode/issues/769
Max Chunks To Make Sorted II	https://github.com/grandyang/leetcode/issues/768
Reorganize String	https://github.com/grandyang/leetcode/issues/767
Toeplitz Matrix	https://github.com/grandyang/leetcode/issues/766
Couples Holding Hands	https://github.com/grandyang/leetcode/issues/765
Largest Plus Sign	https://github.com/grandyang/leetcode/issues/764
Partition Labels	https://github.com/grandyang/leetcode/issues/763
Prime Number of Set Bits in Binary Representation	https://github.com/grandyang/leetcode/issues/762
Special Binary String	https://github.com/grandyang/leetcode/issues/761
Find Anagram Mappings	https://github.com/grandyang/leetcode/issues/760
Employee Free Time	https://github.com/grandyang/leetcode/issues/759
Bold Words in String	https://github.com/grandyang/leetcode/issues/758
Set Intersection Size At Least Two	https://github.com/grandyang/leetcode/issues/757
Pyramid Transition Matrix	https://github.com/grandyang/leetcode/issues/756
Pour Water	https://github.com/grandyang/leetcode/issues/755
Reach a Number	https://github.com/grandyang/leetcode/issues/754
Cracking the Safe	https://github.com/grandyang/leetcode/issues/753
Open the Lock	https://github.com/grandyang/leetcode/issues/752
IP to CIDR	https://github.com/grandyang/leetcode/issues/751
Number Of Corner Rectangles	https://github.com/grandyang/leetcode/issues/750
Contain Virus	https://github.com/grandyang/leetcode/issues/749
Shortest Completing Word	https://github.com/grandyang/leetcode/issues/748
Largest Number At Least Twice of Others	https://github.com/grandyang/leetcode/issues/747
Min Cost Climbing Stairs	https://github.com/grandyang/leetcode/issues/746
Prefix and Suffix Search	https://github.com/grandyang/leetcode/issues/745
Find Smallest Letter Greater Than Target	https://github.com/grandyang/leetcode/issues/744
Network Delay Time	https://github.com/grandyang/leetcode/issues/743
Closest Leaf in a Binary Tree	https://github.com/grandyang/leetcode/issues/742
Cherry Pickup	https://github.com/grandyang/leetcode/issues/741
Delete and Earn	https://github.com/grandyang/leetcode/issues/740
Daily Temperatures	https://github.com/grandyang/leetcode/issues/739
Monotone Increasing Digits	https://github.com/grandyang/leetcode/issues/738
Sentence Similarity II	https://github.com/grandyang/leetcode/issues/737
Parse Lisp Expression	https://github.com/grandyang/leetcode/issues/736
Asteroid Collision	https://github.com/grandyang/leetcode/issues/735
Sentence Similarity	https://github.com/grandyang/leetcode/issues/734
Flood Fill	https://github.com/grandyang/leetcode/issues/733
My Calendar III	https://github.com/grandyang/leetcode/issues/732
My Calendar II	https://github.com/grandyang/leetcode/issues/731
Count Different Palindromic Subsequences	https://github.com/grandyang/leetcode/issues/730
My Calendar I	https://github.com/grandyang/leetcode/issues/729
Self Dividing Numbers	https://github.com/grandyang/leetcode/issues/728
Minimum Window Subsequence	https://github.com/grandyang/leetcode/issues/727
Number of Atoms	https://github.com/grandyang/leetcode/issues/726
Split Linked List in Parts	https://github.com/grandyang/leetcode/issues/725
Find Pivot Index	https://github.com/grandyang/leetcode/issues/724
Candy Crush	https://github.com/grandyang/leetcode/issues/723
Remove Comments	https://github.com/grandyang/leetcode/issues/722
Accounts Merge	https://github.com/grandyang/leetcode/issues/721
Longest Word in Dictionary	https://github.com/grandyang/leetcode/issues/720
Find K-th Smallest Pair Distance	https://github.com/grandyang/leetcode/issues/719
Maximum Length of Repeated Subarray	https://github.com/grandyang/leetcode/issues/718
1-bit and 2-bit Characters	https://github.com/grandyang/leetcode/issues/717
Max Stack	https://github.com/grandyang/leetcode/issues/716
Range Module	https://github.com/grandyang/leetcode/issues/715
Best Time to Buy and Sell Stock with Transaction Fee	https://github.com/grandyang/leetcode/issues/714
Subarray Product Less Than K	https://github.com/grandyang/leetcode/issues/713
Minimum ASCII Delete Sum for Two Strings	https://github.com/grandyang/leetcode/issues/712
Number of Distinct Islands II	https://github.com/grandyang/leetcode/issues/711
Random Pick with Blacklist	https://github.com/grandyang/leetcode/issues/710
To Lower Case	https://github.com/grandyang/leetcode/issues/709
Insert into a Cyclic Sorted List	https://github.com/grandyang/leetcode/issues/708
Design Linked List	https://github.com/grandyang/leetcode/issues/707
Design HashMap	https://github.com/grandyang/leetcode/issues/706
Design HashSet	https://github.com/grandyang/leetcode/issues/705
Binary Search	https://github.com/grandyang/leetcode/issues/704
Kth Largest Element in a Stream	https://github.com/grandyang/leetcode/issues/703
Search in a Sorted Array of Unknown Size	https://github.com/grandyang/leetcode/issues/702
Insert into a Binary Search Tree	https://github.com/grandyang/leetcode/issues/701
Search in a Binary Search Tree	https://github.com/grandyang/leetcode/issues/700
Falling Squares	https://github.com/grandyang/leetcode/issues/699
Partition to K Equal Sum Subsets	https://github.com/grandyang/leetcode/issues/698
Degree of an Array	https://github.com/grandyang/leetcode/issues/697
Count Binary Substrings	https://github.com/grandyang/leetcode/issues/696
Max Area of Island	https://github.com/grandyang/leetcode/issues/695
Number of Distinct Islands	https://github.com/grandyang/leetcode/issues/694
Binary Number with Alternating Bits	https://github.com/grandyang/leetcode/issues/693
Top K Frequent Words	https://github.com/grandyang/leetcode/issues/692
Stickers to Spell Word	https://github.com/grandyang/leetcode/issues/691
Employee Importance	https://github.com/grandyang/leetcode/issues/690
Maximum Sum of 3 Non-Overlapping Subarrays	https://github.com/grandyang/leetcode/issues/689
Knight Probability in Chessboard	https://github.com/grandyang/leetcode/issues/688
Longest Univalue Path	https://github.com/grandyang/leetcode/issues/687
Repeated String Match	https://github.com/grandyang/leetcode/issues/686
Redundant Connection II	https://github.com/grandyang/leetcode/issues/685
Redundant Connection	https://github.com/grandyang/leetcode/issues/684
K Empty Slots	https://github.com/grandyang/leetcode/issues/683
Baseball Game	https://github.com/grandyang/leetcode/issues/682
Next Closest Time	https://github.com/grandyang/leetcode/issues/681
Valid Palindrome II	https://github.com/grandyang/leetcode/issues/680
24 Game	https://github.com/grandyang/leetcode/issues/679
Valid Parenthesis String	https://github.com/grandyang/leetcode/issues/678
Map Sum Pairs	https://github.com/grandyang/leetcode/issues/677
Implement Magic Dictionary	https://github.com/grandyang/leetcode/issues/676
Cut Off Trees for Golf Event	https://github.com/grandyang/leetcode/issues/675
Longest Continuous Increasing Subsequence	https://github.com/grandyang/leetcode/issues/674
Number of Longest Increasing Subsequence	https://github.com/grandyang/leetcode/issues/673
Bulb Switcher II	https://github.com/grandyang/leetcode/issues/672
Second Minimum Node In a Binary Tree	https://github.com/grandyang/leetcode/issues/671
Maximum Swap	https://github.com/grandyang/leetcode/issues/670
Trim a Binary Search Tree	https://github.com/grandyang/leetcode/issues/669
Kth Smallest Number in Multiplication Table	https://github.com/grandyang/leetcode/issues/668
Beautiful Arrangement II	https://github.com/grandyang/leetcode/issues/667
Path Sum IV	https://github.com/grandyang/leetcode/issues/666
Non-decreasing Array	https://github.com/grandyang/leetcode/issues/665
Strange Printer	https://github.com/grandyang/leetcode/issues/664
Equal Tree Partition	https://github.com/grandyang/leetcode/issues/663
Maximum Width of Binary Tree	https://github.com/grandyang/leetcode/issues/662
Image Smoother	https://github.com/grandyang/leetcode/issues/661
Remove 9	https://github.com/grandyang/leetcode/issues/660
Split Array into Consecutive Subsequences	https://github.com/grandyang/leetcode/issues/659
Find K Closest Elements	https://github.com/grandyang/leetcode/issues/658
Judge Route Circle	https://github.com/grandyang/leetcode/issues/657
Coin Path	https://github.com/grandyang/leetcode/issues/656
Print Binary Tree	https://github.com/grandyang/leetcode/issues/655
Maximum Binary Tree	https://github.com/grandyang/leetcode/issues/654
Two Sum IV - Input is a BST	https://github.com/grandyang/leetcode/issues/653
Find Duplicate Subtrees	https://github.com/grandyang/leetcode/issues/652
4 Keys Keyboard	https://github.com/grandyang/leetcode/issues/651
2 Keys Keyboard	https://github.com/grandyang/leetcode/issues/650
Dota2 Senate	https://github.com/grandyang/leetcode/issues/649
Replace Words	https://github.com/grandyang/leetcode/issues/648
Palindromic Substrings	https://github.com/grandyang/leetcode/issues/647
Maximum Length of Pair Chain	https://github.com/grandyang/leetcode/issues/646
Set Mismatch	https://github.com/grandyang/leetcode/issues/645
Maximum Average Subarray II	https://github.com/grandyang/leetcode/issues/644
Maximum Average Subarray I	https://github.com/grandyang/leetcode/issues/643
Design Search Autocomplete System	https://github.com/grandyang/leetcode/issues/642
Design Circular Deque	https://github.com/grandyang/leetcode/issues/641
Solve the Equation	https://github.com/grandyang/leetcode/issues/640
Decode Ways II	https://github.com/grandyang/leetcode/issues/639
Shopping Offers	https://github.com/grandyang/leetcode/issues/638
Average of Levels in Binary Tree	https://github.com/grandyang/leetcode/issues/637
Exclusive Time of Functions	https://github.com/grandyang/leetcode/issues/636
Design Log Storage System	https://github.com/grandyang/leetcode/issues/635
Find the Derangement of An Array	https://github.com/grandyang/leetcode/issues/634
Sum of Square Numbers	https://github.com/grandyang/leetcode/issues/633
Smallest Range	https://github.com/grandyang/leetcode/issues/632
Design Excel Sum Formula	https://github.com/grandyang/leetcode/issues/631
Course Schedule III	https://github.com/grandyang/leetcode/issues/630
K Inverse Pairs Array	https://github.com/grandyang/leetcode/issues/629
Maximum Product of Three Numbers	https://github.com/grandyang/leetcode/issues/628
Minimum Factorization	https://github.com/grandyang/leetcode/issues/625
Maximum Distance in Arrays	https://github.com/grandyang/leetcode/issues/624
Add One Row to Tree	https://github.com/grandyang/leetcode/issues/623
Design Circular Queue	https://github.com/grandyang/leetcode/issues/622
Task Scheduler	https://github.com/grandyang/leetcode/issues/621
Merge Two Binary Trees	https://github.com/grandyang/leetcode/issues/617
Add Bold Tag in String	https://github.com/grandyang/leetcode/issues/616
Valid Triangle Number	https://github.com/grandyang/leetcode/issues/611
Find Duplicate File in System	https://github.com/grandyang/leetcode/issues/609
Sales Person	https://github.com/grandyang/leetcode/issues/607
Construct String from Binary Tree	https://github.com/grandyang/leetcode/issues/606
Can Place Flowers	https://github.com/grandyang/leetcode/issues/605
Design Compressed String Iterator	https://github.com/grandyang/leetcode/issues/604
Non-negative Integers without Consecutive Ones	https://github.com/grandyang/leetcode/issues/600
Minimum Index Sum of Two Lists	https://github.com/grandyang/leetcode/issues/599
Range Addition II	https://github.com/grandyang/leetcode/issues/598
Big Countries	https://github.com/grandyang/leetcode/issues/595
Longest Harmonious Subsequence	https://github.com/grandyang/leetcode/issues/594
Valid Square	https://github.com/grandyang/leetcode/issues/593
Fraction Addition and Subtraction	https://github.com/grandyang/leetcode/issues/592
Tag Validator	https://github.com/grandyang/leetcode/issues/591
N-ary Tree Postorder Traversal	https://github.com/grandyang/leetcode/issues/590
N-ary Tree Preorder Traversal	https://github.com/grandyang/leetcode/issues/589
Design In-Memory File System	https://github.com/grandyang/leetcode/issues/588
Erect the Fence	https://github.com/grandyang/leetcode/issues/587
Delete Operation for Two Strings	https://github.com/grandyang/leetcode/issues/583
Kill Process	https://github.com/grandyang/leetcode/issues/582
Shortest Unsorted Continuous Subarray	https://github.com/grandyang/leetcode/issues/581
Out of Boundary Paths	https://github.com/grandyang/leetcode/issues/576
Distribute Candies	https://github.com/grandyang/leetcode/issues/575
Winning Candidate	https://github.com/grandyang/leetcode/issues/574
Squirrel Simulation	https://github.com/grandyang/leetcode/issues/573
Subtree of Another Tree	https://github.com/grandyang/leetcode/issues/572
Median Employee Salary	https://github.com/grandyang/leetcode/issues/569
Maximum Vacation Days	https://github.com/grandyang/leetcode/issues/568
Permutation in String	https://github.com/grandyang/leetcode/issues/567
Reshape the Matrix	https://github.com/grandyang/leetcode/issues/566
Array Nesting	https://github.com/grandyang/leetcode/issues/565
Find the Closest Palindrome	https://github.com/grandyang/leetcode/issues/564
Binary Tree Tilt	https://github.com/grandyang/leetcode/issues/563
Longest Line of Consecutive One in Matrix	https://github.com/grandyang/leetcode/issues/562
Array Partition I	https://github.com/grandyang/leetcode/issues/561
Subarray Sum Equals K	https://github.com/grandyang/leetcode/issues/560
Maximum Depth of N-ary Tree	https://github.com/grandyang/leetcode/issues/559
Quad Tree Intersection	https://github.com/grandyang/leetcode/issues/558
Reverse Words in a String III	https://github.com/grandyang/leetcode/issues/557
Next Greater Element III	https://github.com/grandyang/leetcode/issues/556
Split Concatenated Strings	https://github.com/grandyang/leetcode/issues/555
Brick Wall	https://github.com/grandyang/leetcode/issues/554
Optimal Division	https://github.com/grandyang/leetcode/issues/553
Student Attendance Record II	https://github.com/grandyang/leetcode/issues/552
Student Attendance Record I	https://github.com/grandyang/leetcode/issues/551
Binary Tree Longest Consecutive Sequence II	https://github.com/grandyang/leetcode/issues/549
Split Array with Equal Sum	https://github.com/grandyang/leetcode/issues/548
Friend Circles	https://github.com/grandyang/leetcode/issues/547
Remove Boxes	https://github.com/grandyang/leetcode/issues/546
Boundary of Binary Tree	https://github.com/grandyang/leetcode/issues/545
Output Contest Matches	https://github.com/grandyang/leetcode/issues/544
Diameter of Binary Tree	https://github.com/grandyang/leetcode/issues/543
01 Matrix	https://github.com/grandyang/leetcode/issues/542
Reverse String II	https://github.com/grandyang/leetcode/issues/541
Single Element in a Sorted Array	https://github.com/grandyang/leetcode/issues/540
Minimum Time Difference	https://github.com/grandyang/leetcode/issues/539
Convert BST to Greater Tree	https://github.com/grandyang/leetcode/issues/538
Complex Number Multiplication	https://github.com/grandyang/leetcode/issues/537
Construct Binary Tree from String	https://github.com/grandyang/leetcode/issues/536
Encode and Decode TinyURL	https://github.com/grandyang/leetcode/issues/535
Lonely Pixel II	https://github.com/grandyang/leetcode/issues/533
K-diff Pairs in an Array	https://github.com/grandyang/leetcode/issues/532
Lonely Pixel I	https://github.com/grandyang/leetcode/issues/531
Minimum Absolute Difference in BST	https://github.com/grandyang/leetcode/issues/530
Minesweeper	https://github.com/grandyang/leetcode/issues/529
Random Pick with Weight	https://github.com/grandyang/leetcode/issues/528
Word Abbreviation	https://github.com/grandyang/leetcode/issues/527
Beautiful Arrangement	https://github.com/grandyang/leetcode/issues/526
Contiguous Array	https://github.com/grandyang/leetcode/issues/525
Longest Word in Dictionary through Deleting	https://github.com/grandyang/leetcode/issues/524
Continuous Subarray Sum	https://github.com/grandyang/leetcode/issues/523
Longest Uncommon Subsequence II	https://github.com/grandyang/leetcode/issues/522
Longest Uncommon Subsequence I	https://github.com/grandyang/leetcode/issues/521
Detect Capital	https://github.com/grandyang/leetcode/issues/520
Random Flip Matrix	https://github.com/grandyang/leetcode/issues/519
Coin Change 2	https://github.com/grandyang/leetcode/issues/518
Super Washing Machines	https://github.com/grandyang/leetcode/issues/517
Longest Palindromic Subsequence	https://github.com/grandyang/leetcode/issues/516
Find Largest Value in Each Tree Row	https://github.com/grandyang/leetcode/issues/515
Freedom Trail	https://github.com/grandyang/leetcode/issues/514
Find Bottom Left Tree Value	https://github.com/grandyang/leetcode/issues/513
Inorder Successor in BST II	https://github.com/grandyang/leetcode/issues/510
Fibonacci Number	https://github.com/grandyang/leetcode/issues/509
Most Frequent Subtree Sum	https://github.com/grandyang/leetcode/issues/508
Perfect Number	https://github.com/grandyang/leetcode/issues/507
Relative Ranks	https://github.com/grandyang/leetcode/issues/506
The Maze II	https://github.com/grandyang/leetcode/issues/505
Base 7	https://github.com/grandyang/leetcode/issues/504
Next Greater Element II	https://github.com/grandyang/leetcode/issues/503
IPO	https://github.com/grandyang/leetcode/issues/502
Find Mode in Binary Search Tree	https://github.com/grandyang/leetcode/issues/501
Keyboard Row	https://github.com/grandyang/leetcode/issues/500
The Maze III	https://github.com/grandyang/leetcode/issues/499
Diagonal Traverse	https://github.com/grandyang/leetcode/issues/498
Random Point in Non-overlapping Rectangles	https://github.com/grandyang/leetcode/issues/497
Next Greater Element I	https://github.com/grandyang/leetcode/issues/496
Teemo Attacking	https://github.com/grandyang/leetcode/issues/495
Target Sum	https://github.com/grandyang/leetcode/issues/494
Reverse Pairs	https://github.com/grandyang/leetcode/issues/493
Construct the Rectangle	https://github.com/grandyang/leetcode/issues/492
Increasing Subsequences	https://github.com/grandyang/leetcode/issues/491
The Maze	https://github.com/grandyang/leetcode/issues/490
Robot Room Cleaner	https://github.com/grandyang/leetcode/issues/489
Zuma Game	https://github.com/grandyang/leetcode/issues/488
Max Consecutive Ones II	https://github.com/grandyang/leetcode/issues/487
Predict the Winner	https://github.com/grandyang/leetcode/issues/486
Max Consecutive Ones	https://github.com/grandyang/leetcode/issues/485
Find Permutation	https://github.com/grandyang/leetcode/issues/484
Smallest Good Base	https://github.com/grandyang/leetcode/issues/483
License Key Formatting	https://github.com/grandyang/leetcode/issues/482
Magical String	https://github.com/grandyang/leetcode/issues/481
Sliding Window Median	https://github.com/grandyang/leetcode/issues/480
Largest Palindrome Product	https://github.com/grandyang/leetcode/issues/479
Generate Random Point in a Circle	https://github.com/grandyang/leetcode/issues/478
Total Hamming Distance	https://github.com/grandyang/leetcode/issues/477
Number Complement	https://github.com/grandyang/leetcode/issues/476
Heaters	https://github.com/grandyang/leetcode/issues/475
Ones and Zeroes	https://github.com/grandyang/leetcode/issues/474
Matchsticks to Square	https://github.com/grandyang/leetcode/issues/473
Concatenated Words	https://github.com/grandyang/leetcode/issues/472
Encode String with Shortest Length	https://github.com/grandyang/leetcode/issues/471
Implement Rand10() Using Rand7()	https://github.com/grandyang/leetcode/issues/470
Convex Polygon	https://github.com/grandyang/leetcode/issues/469
Validate IP Address	https://github.com/grandyang/leetcode/issues/468
Unique Substrings in Wraparound String	https://github.com/grandyang/leetcode/issues/467
Count The Repetitions	https://github.com/grandyang/leetcode/issues/466
Optimal Account Balancing	https://github.com/grandyang/leetcode/issues/465
Can I Win	https://github.com/grandyang/leetcode/issues/464
Island Perimeter	https://github.com/grandyang/leetcode/issues/463
Minimum Moves to Equal Array Elements II	https://github.com/grandyang/leetcode/issues/462
Hamming Distance	https://github.com/grandyang/leetcode/issues/461
LFU Cache	https://github.com/grandyang/leetcode/issues/460
Repeated Substring Pattern	https://github.com/grandyang/leetcode/issues/459
Poor Pigs	https://github.com/grandyang/leetcode/issues/458
Circular Array Loop	https://github.com/grandyang/leetcode/issues/457
132 Pattern	https://github.com/grandyang/leetcode/issues/456
Assign Cookies	https://github.com/grandyang/leetcode/issues/455
4Sum II	https://github.com/grandyang/leetcode/issues/454
Minimum Moves to Equal Array Elements	https://github.com/grandyang/leetcode/issues/453
Minimum Number of Arrows to Burst Balloons	https://github.com/grandyang/leetcode/issues/452
Sort Characters By Frequency	https://github.com/grandyang/leetcode/issues/451
Delete Node in a BST	https://github.com/grandyang/leetcode/issues/450
Serialize and Deserialize BST	https://github.com/grandyang/leetcode/issues/449
Find All Numbers Disappeared in an Array	https://github.com/grandyang/leetcode/issues/448
Number of Boomerangs	https://github.com/grandyang/leetcode/issues/447
Arithmetic Slices II - Subsequence	https://github.com/grandyang/leetcode/issues/446
Add Two Numbers II	https://github.com/grandyang/leetcode/issues/445
Sequence Reconstruction	https://github.com/grandyang/leetcode/issues/444
String Compression	https://github.com/grandyang/leetcode/issues/443
Find All Duplicates in an Array	https://github.com/grandyang/leetcode/issues/442
Arranging Coins	https://github.com/grandyang/leetcode/issues/441
K-th Smallest in Lexicographical Order	https://github.com/grandyang/leetcode/issues/440
Ternary Expression Parser	https://github.com/grandyang/leetcode/issues/439
Find All Anagrams in a String	https://github.com/grandyang/leetcode/issues/438
Path Sum III	https://github.com/grandyang/leetcode/issues/437
Find Right Interval	https://github.com/grandyang/leetcode/issues/436
Non-overlapping Intervals	https://github.com/grandyang/leetcode/issues/435
Number of Segments in a String	https://github.com/grandyang/leetcode/issues/434
Minimum Genetic Mutation	https://github.com/grandyang/leetcode/issues/433
All O`one Data Structure	https://github.com/grandyang/leetcode/issues/432
Encode N-ary Tree to Binary Tree	https://github.com/grandyang/leetcode/issues/431
Flatten a Multilevel Doubly Linked List	https://github.com/grandyang/leetcode/issues/430
N-ary Tree Level Order Traversal	https://github.com/grandyang/leetcode/issues/429
Serialize and Deserialize N-ary Tree	https://github.com/grandyang/leetcode/issues/428
Construct Quad Tree	https://github.com/grandyang/leetcode/issues/427
Convert Binary Search Tree to Sorted Doubly Linked List	https://github.com/grandyang/leetcode/issues/426
Word Squares	https://github.com/grandyang/leetcode/issues/425
Longest Repeating Character Replacement	https://github.com/grandyang/leetcode/issues/424
Reconstruct Original Digits from English	https://github.com/grandyang/leetcode/issues/423
Valid Word Square	https://github.com/grandyang/leetcode/issues/422
Maximum XOR of Two Numbers in an Array	https://github.com/grandyang/leetcode/issues/421
Strong Password Checker	https://github.com/grandyang/leetcode/issues/420
Battleships in a Board	https://github.com/grandyang/leetcode/issues/419
Sentence Screen Fitting	https://github.com/grandyang/leetcode/issues/418
Pacific Atlantic Water Flow	https://github.com/grandyang/leetcode/issues/417
Partition Equal Subset Sum	https://github.com/grandyang/leetcode/issues/416
Add Strings	https://github.com/grandyang/leetcode/issues/415
Third Maximum Number	https://github.com/grandyang/leetcode/issues/414
Arithmetic Slices	https://github.com/grandyang/leetcode/issues/413
Fizz Buzz	https://github.com/grandyang/leetcode/issues/412
Minimum Unique Word Abbreviation	https://github.com/grandyang/leetcode/issues/411
Split Array Largest Sum	https://github.com/grandyang/leetcode/issues/410
Longest Palindrome	https://github.com/grandyang/leetcode/issues/409
Valid Word Abbreviation	https://github.com/grandyang/leetcode/issues/408
Trapping Rain Water II	https://github.com/grandyang/leetcode/issues/407
Queue Reconstruction by Height	https://github.com/grandyang/leetcode/issues/406
Convert a Number to Hexadecimal	https://github.com/grandyang/leetcode/issues/405
Sum of Left Leaves	https://github.com/grandyang/leetcode/issues/404
Frog Jump	https://github.com/grandyang/leetcode/issues/403
Remove K Digits	https://github.com/grandyang/leetcode/issues/402
Binary Watch	https://github.com/grandyang/leetcode/issues/401
Nth Digit	https://github.com/grandyang/leetcode/issues/400
Evaluate Division	https://github.com/grandyang/leetcode/issues/399
Random Pick Index	https://github.com/grandyang/leetcode/issues/398
Integer Replacement	https://github.com/grandyang/leetcode/issues/397
Rotate Function	https://github.com/grandyang/leetcode/issues/396
Longest Substring with At Least K Repeating Characters	https://github.com/grandyang/leetcode/issues/395
Decode String	https://github.com/grandyang/leetcode/issues/394
UTF-8 Validation	https://github.com/grandyang/leetcode/issues/393
Is Subsequence	https://github.com/grandyang/leetcode/issues/392
Perfect Rectangle	https://github.com/grandyang/leetcode/issues/391
Elimination Game	https://github.com/grandyang/leetcode/issues/390
Find the Difference	https://github.com/grandyang/leetcode/issues/389
Longest Absolute File Path	https://github.com/grandyang/leetcode/issues/388
First Unique Character in a String	https://github.com/grandyang/leetcode/issues/387
Lexicographical Numbers	https://github.com/grandyang/leetcode/issues/386
Mini Parser	https://github.com/grandyang/leetcode/issues/385
Shuffle an Array	https://github.com/grandyang/leetcode/issues/384
Ransom Note	https://github.com/grandyang/leetcode/issues/383
Linked List Random Node	https://github.com/grandyang/leetcode/issues/382
Insert Delete GetRandom O(1) - Duplicates allowed	https://github.com/grandyang/leetcode/issues/381
Insert Delete GetRandom O(1)	https://github.com/grandyang/leetcode/issues/380
Design Phone Directory	https://github.com/grandyang/leetcode/issues/379
Kth Smallest Element in a Sorted Matrix	https://github.com/grandyang/leetcode/issues/378
Combination Sum IV	https://github.com/grandyang/leetcode/issues/377
Wiggle Subsequence	https://github.com/grandyang/leetcode/issues/376
Guess Number Higher or Lower II	https://github.com/grandyang/leetcode/issues/375
Guess Number Higher or Lower	https://github.com/grandyang/leetcode/issues/374
Find K Pairs with Smallest Sums	https://github.com/grandyang/leetcode/issues/373
Super Pow	https://github.com/grandyang/leetcode/issues/372
Sum of Two Integers	https://github.com/grandyang/leetcode/issues/371
Range Addition	https://github.com/grandyang/leetcode/issues/370
Plus One Linked List	https://github.com/grandyang/leetcode/issues/369
Largest Divisible Subset	https://github.com/grandyang/leetcode/issues/368
Valid Perfect Square	https://github.com/grandyang/leetcode/issues/367
Find Leaves of Binary Tree	https://github.com/grandyang/leetcode/issues/366
Water and Jug Problem	https://github.com/grandyang/leetcode/issues/365
Nested List Weight Sum II	https://github.com/grandyang/leetcode/issues/364
Max Sum of Rectangle No Larger Than K	https://github.com/grandyang/leetcode/issues/363
Design Hit Counter	https://github.com/grandyang/leetcode/issues/362
Bomb Enemy	https://github.com/grandyang/leetcode/issues/361
Sort Transformed Array	https://github.com/grandyang/leetcode/issues/360
Logger Rate Limiter	https://github.com/grandyang/leetcode/issues/359
Rearrange String k Distance Apart	https://github.com/grandyang/leetcode/issues/358
Count Numbers with Unique Digits	https://github.com/grandyang/leetcode/issues/357
Line Reflection	https://github.com/grandyang/leetcode/issues/356
Design Twitter	https://github.com/grandyang/leetcode/issues/355
Russian Doll Envelopes	https://github.com/grandyang/leetcode/issues/354
Design Snake Game	https://github.com/grandyang/leetcode/issues/353
Data Stream as Disjoint Intervals	https://github.com/grandyang/leetcode/issues/352
Android Unlock Patterns	https://github.com/grandyang/leetcode/issues/351
Intersection of Two Arrays II	https://github.com/grandyang/leetcode/issues/350
Intersection of Two Arrays	https://github.com/grandyang/leetcode/issues/349
Design Tic-Tac-Toe	https://github.com/grandyang/leetcode/issues/348
Top K Frequent Elements	https://github.com/grandyang/leetcode/issues/347
Moving Average from Data Stream	https://github.com/grandyang/leetcode/issues/346
Reverse Vowels of a String	https://github.com/grandyang/leetcode/issues/345
Reverse String	https://github.com/grandyang/leetcode/issues/344
Integer Break	https://github.com/grandyang/leetcode/issues/343
Power of Four	https://github.com/grandyang/leetcode/issues/342
Flatten Nested List Iterator	https://github.com/grandyang/leetcode/issues/341
Longest Substring with At Most K Distinct Characters	https://github.com/grandyang/leetcode/issues/340
Nested List Weight Sum	https://github.com/grandyang/leetcode/issues/339
Counting Bits	https://github.com/grandyang/leetcode/issues/338
House Robber III	https://github.com/grandyang/leetcode/issues/337
Palindrome Pairs	https://github.com/grandyang/leetcode/issues/336
Self Crossing	https://github.com/grandyang/leetcode/issues/335
Increasing Triplet Subsequence	https://github.com/grandyang/leetcode/issues/334
Largest BST Subtree	https://github.com/grandyang/leetcode/issues/333
Reconstruct Itinerary	https://github.com/grandyang/leetcode/issues/332
Verify Preorder Serialization of a Binary Tree	https://github.com/grandyang/leetcode/issues/331
Patching Array	https://github.com/grandyang/leetcode/issues/330
Longest Increasing Path in a Matrix	https://github.com/grandyang/leetcode/issues/329
Odd Even Linked List	https://github.com/grandyang/leetcode/issues/328
Count of Range Sum	https://github.com/grandyang/leetcode/issues/327
Power of Three	https://github.com/grandyang/leetcode/issues/326
Maximum Size Subarray Sum Equals k	https://github.com/grandyang/leetcode/issues/325
Wiggle Sort II	https://github.com/grandyang/leetcode/issues/324
Number of Connected Components in an Undirected Graph	https://github.com/grandyang/leetcode/issues/323
Coin Change	https://github.com/grandyang/leetcode/issues/322
Create Maximum Number	https://github.com/grandyang/leetcode/issues/321
Generalized Abbreviation	https://github.com/grandyang/leetcode/issues/320
Bulb Switcher	https://github.com/grandyang/leetcode/issues/319
Maximum Product of Word Lengths	https://github.com/grandyang/leetcode/issues/318
Shortest Distance from All Buildings	https://github.com/grandyang/leetcode/issues/317
Remove Duplicate Letters	https://github.com/grandyang/leetcode/issues/316
Count of Smaller Numbers After Self	https://github.com/grandyang/leetcode/issues/315
Binary Tree Vertical Order Traversal	https://github.com/grandyang/leetcode/issues/314
Super Ugly Number	https://github.com/grandyang/leetcode/issues/313
Burst Balloons	https://github.com/grandyang/leetcode/issues/312
Sparse Matrix Multiplication	https://github.com/grandyang/leetcode/issues/311
Minimum Height Trees	https://github.com/grandyang/leetcode/issues/310
Best Time to Buy and Sell Stock with Cooldown	https://github.com/grandyang/leetcode/issues/309
Range Sum Query 2D - Mutable	https://github.com/grandyang/leetcode/issues/308
Range Sum Query - Mutable	https://github.com/grandyang/leetcode/issues/307
Additive Number	https://github.com/grandyang/leetcode/issues/306
Number of Islands II	https://github.com/grandyang/leetcode/issues/305
Range Sum Query 2D - Immutable	https://github.com/grandyang/leetcode/issues/304
Range Sum Query - Immutable	https://github.com/grandyang/leetcode/issues/303
Smallest Rectangle Enclosing Black Pixels	https://github.com/grandyang/leetcode/issues/302
Remove Invalid Parentheses	https://github.com/grandyang/leetcode/issues/301
Longest Increasing Subsequence	https://github.com/grandyang/leetcode/issues/300
Bulls and Cows	https://github.com/grandyang/leetcode/issues/299
Binary Tree Longest Consecutive Sequence	https://github.com/grandyang/leetcode/issues/298
Serialize and Deserialize Binary Tree	https://github.com/grandyang/leetcode/issues/297
Best Meeting Point	https://github.com/grandyang/leetcode/issues/296
Find Median from Data Stream	https://github.com/grandyang/leetcode/issues/295
Flip Game II	https://github.com/grandyang/leetcode/issues/294
Flip Game	https://github.com/grandyang/leetcode/issues/293
Nim Game	https://github.com/grandyang/leetcode/issues/292
Word Pattern II	https://github.com/grandyang/leetcode/issues/291
Word Pattern	https://github.com/grandyang/leetcode/issues/290
Game of Life	https://github.com/grandyang/leetcode/issues/289
Unique Word Abbreviation	https://github.com/grandyang/leetcode/issues/288
Find the Duplicate Number	https://github.com/grandyang/leetcode/issues/287
Walls and Gates	https://github.com/grandyang/leetcode/issues/286
Inorder Successor in BST	https://github.com/grandyang/leetcode/issues/285
Peeking Iterator	https://github.com/grandyang/leetcode/issues/284
Move Zeroes	https://github.com/grandyang/leetcode/issues/283
Expression Add Operators	https://github.com/grandyang/leetcode/issues/282
Zigzag Iterator	https://github.com/grandyang/leetcode/issues/281
Wiggle Sort	https://github.com/grandyang/leetcode/issues/280
Perfect Squares	https://github.com/grandyang/leetcode/issues/279
First Bad Version	https://github.com/grandyang/leetcode/issues/278
Find the Celebrity	https://github.com/grandyang/leetcode/issues/277
Paint Fence	https://github.com/grandyang/leetcode/issues/276
H-Index II	https://github.com/grandyang/leetcode/issues/275
H-Index	https://github.com/grandyang/leetcode/issues/274
Integer to English Words	https://github.com/grandyang/leetcode/issues/273
Closest Binary Search Tree Value II	https://github.com/grandyang/leetcode/issues/272
Encode and Decode Strings	https://github.com/grandyang/leetcode/issues/271
Closest Binary Search Tree Value	https://github.com/grandyang/leetcode/issues/270
Alien Dictionary	https://github.com/grandyang/leetcode/issues/269
Missing Number	https://github.com/grandyang/leetcode/issues/268
Palindrome Permutation II	https://github.com/grandyang/leetcode/issues/267
Palindrome Permutation	https://github.com/grandyang/leetcode/issues/266
Paint House II	https://github.com/grandyang/leetcode/issues/265
Ugly Number II	https://github.com/grandyang/leetcode/issues/264
Ugly Number	https://github.com/grandyang/leetcode/issues/263
Trips and Users	https://github.com/grandyang/leetcode/issues/262
Graph Valid Tree	https://github.com/grandyang/leetcode/issues/261
Single Number III	https://github.com/grandyang/leetcode/issues/260
3Sum Smaller	https://github.com/grandyang/leetcode/issues/259
Add Digits	https://github.com/grandyang/leetcode/issues/258
Binary Tree Paths	https://github.com/grandyang/leetcode/issues/257
Paint House	https://github.com/grandyang/leetcode/issues/256
Verify Preorder Sequence in Binary Search Tree	https://github.com/grandyang/leetcode/issues/255
Factor Combinations	https://github.com/grandyang/leetcode/issues/254
Meeting Rooms II	https://github.com/grandyang/leetcode/issues/253
Meeting Rooms	https://github.com/grandyang/leetcode/issues/252
Flatten 2D Vector	https://github.com/grandyang/leetcode/issues/251
Count Univalue Subtrees	https://github.com/grandyang/leetcode/issues/250
Group Shifted Strings	https://github.com/grandyang/leetcode/issues/249
Strobogrammatic Number III	https://github.com/grandyang/leetcode/issues/248
Strobogrammatic Number II	https://github.com/grandyang/leetcode/issues/247
Strobogrammatic Number	https://github.com/grandyang/leetcode/issues/246
Shortest Word Distance III	https://github.com/grandyang/leetcode/issues/245
Shortest Word Distance II	https://github.com/grandyang/leetcode/issues/244
Shortest Word Distance	https://github.com/grandyang/leetcode/issues/243
Valid Anagram	https://github.com/grandyang/leetcode/issues/242
Different Ways to Add Parentheses	https://github.com/grandyang/leetcode/issues/241
Search a 2D Matrix II	https://github.com/grandyang/leetcode/issues/240
Sliding Window Maximum	https://github.com/grandyang/leetcode/issues/239
Product of Array Except Self	https://github.com/grandyang/leetcode/issues/238
Delete Node in a Linked List	https://github.com/grandyang/leetcode/issues/237
Lowest Common Ancestor of a Binary Tree	https://github.com/grandyang/leetcode/issues/236
Lowest Common Ancestor of a Binary Search Tree	https://github.com/grandyang/leetcode/issues/235
Palindrome Linked List	https://github.com/grandyang/leetcode/issues/234
Number of Digit One	https://github.com/grandyang/leetcode/issues/233
Implement Queue using Stacks	https://github.com/grandyang/leetcode/issues/232
Power of Two	https://github.com/grandyang/leetcode/issues/231
Kth Smallest Element in a BST	https://github.com/grandyang/leetcode/issues/230
Majority Element II	https://github.com/grandyang/leetcode/issues/229
Summary Ranges	https://github.com/grandyang/leetcode/issues/228
Basic Calculator II	https://github.com/grandyang/leetcode/issues/227
Invert Binary Tree	https://github.com/grandyang/leetcode/issues/226
Implement Stack using Queues	https://github.com/grandyang/leetcode/issues/225
Basic Calculator	https://github.com/grandyang/leetcode/issues/224
Rectangle Area	https://github.com/grandyang/leetcode/issues/223
Count Complete Tree Nodes	https://github.com/grandyang/leetcode/issues/222
Maximal Square	https://github.com/grandyang/leetcode/issues/221
Contains Duplicate III	https://github.com/grandyang/leetcode/issues/220
Contains Duplicate II	https://github.com/grandyang/leetcode/issues/219
The Skyline Problem	https://github.com/grandyang/leetcode/issues/218
Contains Duplicate	https://github.com/grandyang/leetcode/issues/217
Combination Sum III	https://github.com/grandyang/leetcode/issues/216
Kth Largest Element in an Array	https://github.com/grandyang/leetcode/issues/215
Shortest Palindrome	https://github.com/grandyang/leetcode/issues/214
House Robber II	https://github.com/grandyang/leetcode/issues/213
Word Search II	https://github.com/grandyang/leetcode/issues/212
Add and Search Word - Data structure design	https://github.com/grandyang/leetcode/issues/211
Course Schedule II	https://github.com/grandyang/leetcode/issues/210
Minimum Size Subarray Sum	https://github.com/grandyang/leetcode/issues/209
Implement Trie (Prefix Tree)	https://github.com/grandyang/leetcode/issues/208
Course Schedule	https://github.com/grandyang/leetcode/issues/207
Reverse Linked List	https://github.com/grandyang/leetcode/issues/206
Isomorphic Strings	https://github.com/grandyang/leetcode/issues/205
Count Primes	https://github.com/grandyang/leetcode/issues/204
Remove Linked List Elements	https://github.com/grandyang/leetcode/issues/203
Happy Number	https://github.com/grandyang/leetcode/issues/202
Bitwise AND of Numbers Range	https://github.com/grandyang/leetcode/issues/201
Number of Islands	https://github.com/grandyang/leetcode/issues/200
Binary Tree Right Side View	https://github.com/grandyang/leetcode/issues/199
House Robber	https://github.com/grandyang/leetcode/issues/198
Rising Temperature	https://github.com/grandyang/leetcode/issues/197
Delete Duplicate Emails	https://github.com/grandyang/leetcode/issues/196
Tenth Line	https://github.com/grandyang/leetcode/issues/195
Transpose File	https://github.com/grandyang/leetcode/issues/194
Valid Phone Numbers	https://github.com/grandyang/leetcode/issues/193
Word Frequency	https://github.com/grandyang/leetcode/issues/192
Number of 1 Bits	https://github.com/grandyang/leetcode/issues/191
Reverse Bits	https://github.com/grandyang/leetcode/issues/190
Rotate Array	https://github.com/grandyang/leetcode/issues/189
Best Time to Buy and Sell Stock IV	https://github.com/grandyang/leetcode/issues/188
Repeated DNA Sequences	https://github.com/grandyang/leetcode/issues/187
Reverse Words in a String II	https://github.com/grandyang/leetcode/issues/186
Department Top Three Salaries	https://github.com/grandyang/leetcode/issues/185
Department Highest Salary	https://github.com/grandyang/leetcode/issues/184
Customers Who Never Order	https://github.com/grandyang/leetcode/issues/183
Duplicate Emails	https://github.com/grandyang/leetcode/issues/182
Employees Earning More Than Their Managers	https://github.com/grandyang/leetcode/issues/181
Consecutive Numbers	https://github.com/grandyang/leetcode/issues/180
Largest Number	https://github.com/grandyang/leetcode/issues/179
Rank Scores	https://github.com/grandyang/leetcode/issues/178
Nth Highest Salary	https://github.com/grandyang/leetcode/issues/177
Second Highest Salary	https://github.com/grandyang/leetcode/issues/176
Combine Two Tables	https://github.com/grandyang/leetcode/issues/175
Dungeon Game	https://github.com/grandyang/leetcode/issues/174
Binary Search Tree Iterator	https://github.com/grandyang/leetcode/issues/173
Factorial Trailing Zeroes	https://github.com/grandyang/leetcode/issues/172
Excel Sheet Column Number	https://github.com/grandyang/leetcode/issues/171
Two Sum III - Data structure design	https://github.com/grandyang/leetcode/issues/170
Majority Element	https://github.com/grandyang/leetcode/issues/169
Excel Sheet Column Title	https://github.com/grandyang/leetcode/issues/168
Two Sum II - Input array is sorted	https://github.com/grandyang/leetcode/issues/167
Fraction to Recurring Decimal	https://github.com/grandyang/leetcode/issues/166
Compare Version Numbers	https://github.com/grandyang/leetcode/issues/165
Maximum Gap	https://github.com/grandyang/leetcode/issues/164
Missing Ranges	https://github.com/grandyang/leetcode/issues/163
Find Peak Element	https://github.com/grandyang/leetcode/issues/162
One Edit Distance	https://github.com/grandyang/leetcode/issues/161
Intersection of Two Linked Lists	https://github.com/grandyang/leetcode/issues/160
Longest Substring with At Most Two Distinct Characters	https://github.com/grandyang/leetcode/issues/159
Read N Characters Given Read4 II - Call multiple times	https://github.com/grandyang/leetcode/issues/158
Read N Characters Given Read4	https://github.com/grandyang/leetcode/issues/157
Binary Tree Upside Down	https://github.com/grandyang/leetcode/issues/156
Min Stack	https://github.com/grandyang/leetcode/issues/155
Find Minimum in Rotated Sorted Array II	https://github.com/grandyang/leetcode/issues/154
Find Minimum in Rotated Sorted Array	https://github.com/grandyang/leetcode/issues/153
Maximum Product Subarray	https://github.com/grandyang/leetcode/issues/152
Reverse Words in a String	https://github.com/grandyang/leetcode/issues/151
Evaluate Reverse Polish Notation	https://github.com/grandyang/leetcode/issues/150
Max Points on a Line	https://github.com/grandyang/leetcode/issues/149
Sort List	https://github.com/grandyang/leetcode/issues/148
Insertion Sort List	https://github.com/grandyang/leetcode/issues/147
LRU Cache	https://github.com/grandyang/leetcode/issues/146
Binary Tree Postorder Traversal	https://github.com/grandyang/leetcode/issues/145
Binary Tree Preorder Traversal	https://github.com/grandyang/leetcode/issues/144
Reorder List	https://github.com/grandyang/leetcode/issues/143
Linked List Cycle II	https://github.com/grandyang/leetcode/issues/142
Linked List Cycle	https://github.com/grandyang/leetcode/issues/141
Word Break II	https://github.com/grandyang/leetcode/issues/140
Word Break	https://github.com/grandyang/leetcode/issues/139
Copy List with Random Pointer	https://github.com/grandyang/leetcode/issues/138
Single Number II	https://github.com/grandyang/leetcode/issues/137
Single Number	https://github.com/grandyang/leetcode/issues/136
Candy	https://github.com/grandyang/leetcode/issues/135
Gas Station	https://github.com/grandyang/leetcode/issues/134
Clone Graph	https://github.com/grandyang/leetcode/issues/133
Palindrome Partitioning II	https://github.com/grandyang/leetcode/issues/132
Palindrome Partitioning	https://github.com/grandyang/leetcode/issues/131
Surrounded Regions	https://github.com/grandyang/leetcode/issues/130
Sum Root to Leaf Numbers	https://github.com/grandyang/leetcode/issues/129
Longest Consecutive Sequence	https://github.com/grandyang/leetcode/issues/128
Word Ladder	https://github.com/grandyang/leetcode/issues/127
Word Ladder II	https://github.com/grandyang/leetcode/issues/126
Valid Palindrome	https://github.com/grandyang/leetcode/issues/125
Binary Tree Maximum Path Sum	https://github.com/grandyang/leetcode/issues/124
Best Time to Buy and Sell Stock III	https://github.com/grandyang/leetcode/issues/123
Best Time to Buy and Sell Stock II	https://github.com/grandyang/leetcode/issues/122
Best Time to Buy and Sell Stock	https://github.com/grandyang/leetcode/issues/121
Triangle	https://github.com/grandyang/leetcode/issues/120
Pascal's Triangle II	https://github.com/grandyang/leetcode/issues/119
Pascal's Triangle	https://github.com/grandyang/leetcode/issues/118
Populating Next Right Pointers in Each Node II	https://github.com/grandyang/leetcode/issues/117
Populating Next Right Pointers in Each Node	https://github.com/grandyang/leetcode/issues/116
Distinct Subsequences	https://github.com/grandyang/leetcode/issues/115
Flatten Binary Tree to Linked List	https://github.com/grandyang/leetcode/issues/114
Path Sum II	https://github.com/grandyang/leetcode/issues/113
Path Sum	https://github.com/grandyang/leetcode/issues/112
Minimum Depth of Binary Tree	https://github.com/grandyang/leetcode/issues/111
Balanced Binary Tree	https://github.com/grandyang/leetcode/issues/110
Convert Sorted List to Binary Search Tree	https://github.com/grandyang/leetcode/issues/109
Convert Sorted Array to Binary Search Tree	https://github.com/grandyang/leetcode/issues/108
Binary Tree Level Order Traversal II	https://github.com/grandyang/leetcode/issues/107
Construct Binary Tree from Inorder and Postorder Traversal	https://github.com/grandyang/leetcode/issues/106
Construct Binary Tree from Preorder and Inorder Traversal	https://github.com/grandyang/leetcode/issues/105
Maximum Depth of Binary Tree	https://github.com/grandyang/leetcode/issues/104
Binary Tree Zigzag Level Order Traversal	https://github.com/grandyang/leetcode/issues/103
Binary Tree Level Order Traversal	https://github.com/grandyang/leetcode/issues/102
Symmetric Tree	https://github.com/grandyang/leetcode/issues/101
Same Tree	https://github.com/grandyang/leetcode/issues/100
Recover Binary Search Tree	https://github.com/grandyang/leetcode/issues/99
Validate Binary Search Tree	https://github.com/grandyang/leetcode/issues/98
Interleaving String	https://github.com/grandyang/leetcode/issues/97
Unique Binary Search Trees	https://github.com/grandyang/leetcode/issues/96
Unique Binary Search Trees II	https://github.com/grandyang/leetcode/issues/95
Binary Tree Inorder Traversal	https://github.com/grandyang/leetcode/issues/94
Restore IP Addresses	https://github.com/grandyang/leetcode/issues/93
Reverse Linked List II	https://github.com/grandyang/leetcode/issues/92
Decode Ways	https://github.com/grandyang/leetcode/issues/91
Subsets II	https://github.com/grandyang/leetcode/issues/90
Gray Code	https://github.com/grandyang/leetcode/issues/89
Merge Sorted Array	https://github.com/grandyang/leetcode/issues/88
Scramble String	https://github.com/grandyang/leetcode/issues/87
Partition List	https://github.com/grandyang/leetcode/issues/86
Maximal Rectangle	https://github.com/grandyang/leetcode/issues/85
Largest Rectangle in Histogram	https://github.com/grandyang/leetcode/issues/84
Remove Duplicates from Sorted List	https://github.com/grandyang/leetcode/issues/83
Remove Duplicates from Sorted List II	https://github.com/grandyang/leetcode/issues/82
Search in Rotated Sorted Array II	https://github.com/grandyang/leetcode/issues/81
Remove Duplicates from Sorted Array II	https://github.com/grandyang/leetcode/issues/80
Word Search	https://github.com/grandyang/leetcode/issues/79
Subsets	https://github.com/grandyang/leetcode/issues/78
Combinations	https://github.com/grandyang/leetcode/issues/77
Minimum Window Substring	https://github.com/grandyang/leetcode/issues/76
Sort Colors	https://github.com/grandyang/leetcode/issues/75
Search a 2D Matrix	https://github.com/grandyang/leetcode/issues/74
Set Matrix Zeroes	https://github.com/grandyang/leetcode/issues/73
Edit Distance	https://github.com/grandyang/leetcode/issues/72
Simplify Path	https://github.com/grandyang/leetcode/issues/71
Climbing Stairs	https://github.com/grandyang/leetcode/issues/70
Sqrt(x)	https://github.com/grandyang/leetcode/issues/69
Text Justification	https://github.com/grandyang/leetcode/issues/68
Add Binary	https://github.com/grandyang/leetcode/issues/67
Plus One	https://github.com/grandyang/leetcode/issues/66
Valid Number	https://github.com/grandyang/leetcode/issues/65
Minimum Path Sum	https://github.com/grandyang/leetcode/issues/64
Unique Paths II	https://github.com/grandyang/leetcode/issues/63
Unique Paths	https://github.com/grandyang/leetcode/issues/62
Rotate List	https://github.com/grandyang/leetcode/issues/61
Permutation Sequence	https://github.com/grandyang/leetcode/issues/60
Spiral Matrix II	https://github.com/grandyang/leetcode/issues/59
Length of Last Word	https://github.com/grandyang/leetcode/issues/58
Insert Interval	https://github.com/grandyang/leetcode/issues/57
Merge Intervals	https://github.com/grandyang/leetcode/issues/56
Jump Game	https://github.com/grandyang/leetcode/issues/55
Spiral Matrix	https://github.com/grandyang/leetcode/issues/54
Maximum Subarray	https://github.com/grandyang/leetcode/issues/53
N-Queens II	https://github.com/grandyang/leetcode/issues/52
N-Queens	https://github.com/grandyang/leetcode/issues/51
Pow(x, n)	https://github.com/grandyang/leetcode/issues/50
Anagrams	https://github.com/grandyang/leetcode/issues/49
Rotate Image	https://github.com/grandyang/leetcode/issues/48
Permutations II	https://github.com/grandyang/leetcode/issues/47
Permutations	https://github.com/grandyang/leetcode/issues/46
Jump Game II	https://github.com/grandyang/leetcode/issues/45
Wildcard Matching	https://github.com/grandyang/leetcode/issues/44
Multiply Strings	https://github.com/grandyang/leetcode/issues/43
Trapping Rain Water	https://github.com/grandyang/leetcode/issues/42
First Missing Positive	https://github.com/grandyang/leetcode/issues/41
Combination Sum II	https://github.com/grandyang/leetcode/issues/40
Combination Sum	https://github.com/grandyang/leetcode/issues/39
Count and Say	https://github.com/grandyang/leetcode/issues/38
Sudoku Solver	https://github.com/grandyang/leetcode/issues/37
Valid Sudoku	https://github.com/grandyang/leetcode/issues/36
Search Insert Position	https://github.com/grandyang/leetcode/issues/35
Search for a Range	https://github.com/grandyang/leetcode/issues/34
Search in Rotated Sorted Array	https://github.com/grandyang/leetcode/issues/33
Longest Valid Parentheses	https://github.com/grandyang/leetcode/issues/32
Next Permutation	https://github.com/grandyang/leetcode/issues/31
Substring with Concatenation of All Words	https://github.com/grandyang/leetcode/issues/30
Divide Two Integers	https://github.com/grandyang/leetcode/issues/29
Implement strStr()	https://github.com/grandyang/leetcode/issues/28
Remove Element	https://github.com/grandyang/leetcode/issues/27
Remove Duplicates from Sorted Array	https://github.com/grandyang/leetcode/issues/26
Reverse Nodes in k-Group	https://github.com/grandyang/leetcode/issues/25
Swap Nodes in Pairs	https://github.com/grandyang/leetcode/issues/24
Merge k Sorted Lists	https://github.com/grandyang/leetcode/issues/23
Generate Parentheses	https://github.com/grandyang/leetcode/issues/22
Merge Two Sorted Lists	https://github.com/grandyang/leetcode/issues/21
Valid Parentheses	https://github.com/grandyang/leetcode/issues/20
Remove Nth Node From End of List	https://github.com/grandyang/leetcode/issues/19
4Sum	https://github.com/grandyang/leetcode/issues/18
Letter Combinations of a Phone Number	https://github.com/grandyang/leetcode/issues/17
3Sum Closest	https://github.com/grandyang/leetcode/issues/16
3Sum	https://github.com/grandyang/leetcode/issues/15
Longest Common Prefix	https://github.com/grandyang/leetcode/issues/14
Roman to Integer	https://github.com/grandyang/leetcode/issues/13
Integer to Roman	https://github.com/grandyang/leetcode/issues/12
Container With Most Water	https://github.com/grandyang/leetcode/issues/11
Regular Expression Matching	https://github.com/grandyang/leetcode/issues/10
Palindrome Number	https://github.com/grandyang/leetcode/issues/9
String to Integer (atoi)	https://github.com/grandyang/leetcode/issues/8
Reverse Integer	https://github.com/grandyang/leetcode/issues/7
ZigZag Conversion	https://github.com/grandyang/leetcode/issues/6
Longest Palindromic Substring	https://github.com/grandyang/leetcode/issues/5
Median of Two Sorted Arrays	https://github.com/grandyang/leetcode/issues/4
Longest Substring Without Repeating Characters	https://github.com/grandyang/leetcode/issues/3
Add Two Numbers	https://github.com/grandyang/leetcode/issues/2
Two Sum	https://github.com/grandyang/leetcode/issues/1
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@notfresh	https://github.com/notfresh
cnblogs	https://www.cnblogs.com/grandyang/
leetcode	https://github.com/topics/leetcode
array	https://github.com/topics/array
sort	https://github.com/topics/sort
data-structures	https://github.com/topics/data-structures
leetcode-solutions	https://github.com/topics/leetcode-solutions
interview-questions	https://github.com/topics/interview-questions
coding-practices	https://github.com/topics/coding-practices
alogrithms	https://github.com/topics/alogrithms
Readme	https://github.com/grandyang/leetcode#readme-ov-file
Please reload this page	https://github.com/grandyang/leetcode
Activity	https://github.com/grandyang/leetcode/activity
6.2k stars	https://github.com/grandyang/leetcode/stargazers
240 watching	https://github.com/grandyang/leetcode/watchers
740 forks	https://github.com/grandyang/leetcode/forks
Report repository	https://github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fgrandyang%2Fleetcode&report=grandyang+%28user%29
Releases	https://github.com/grandyang/leetcode/releases
Please reload this page	https://github.com/grandyang/leetcode
Learn more about GitHub Sponsors	https://github.com/sponsors
Packages 0	https://github.com/users/grandyang/packages?repo_name=leetcode
Please reload this page	https://github.com/grandyang/leetcode
Contributors 2	https://github.com/grandyang/leetcode/graphs/contributors
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