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Title: GitHub - DocLi/leetcode: Leetcode solutions · GitHub

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Description: Leetcode solutions. Contribute to DocLi/leetcode development by creating an account on GitHub.

Open Graph Description: Leetcode solutions. Contribute to DocLi/leetcode development by creating an account on GitHub.

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

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Battleships in a Board	https://github.com/DocLi/leetcode/blob/master/problems/src/array/BattleshipsInABoard.java
Find the Celebrity	https://github.com/DocLi/leetcode/blob/master/problems/src/array/FindTheCelebrity.java
Meeting Rooms	https://github.com/DocLi/leetcode/blob/master/problems/src/array/MeetingRooms.java
Longest Continuous Increasing Subsequence	https://github.com/DocLi/leetcode/blob/master/problems/src/array/LongestIncreasingSubsequence.java
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Combinations	https://github.com/DocLi/leetcode/blob/master/problems/src/backtracking/Combinations.java
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Letter Phone Number	https://github.com/DocLi/leetcode/blob/master/problems/src/backtracking/LetterPhoneNumber.java
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Generate Parentheses	https://github.com/DocLi/leetcode/blob/master/problems/src/backtracking/GenerateParentheses.java
Remove Invalid Parentheses	https://github.com/DocLi/leetcode/blob/master/problems/src/backtracking/RemoveInvalidParentheses.java
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Search in a Rotated Sorted Array	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/SearchRotatedSortedArray.java
Search for a Range	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/SearchForARange.java
Sqrt(x)	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/SqrtX.java
Search Insert Position	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/SearchInsertPosition.java
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Pow(x, n)	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/PowXN.java
Find Peak Element	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/FindPeakElement.java
First Bad Version	https://github.com/DocLi/leetcode/blob/master/problems/src/binary_search/FirstBadVersion.java
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Gray Code	https://github.com/DocLi/leetcode/blob/master/problems/src/bit_manipulation/GrayCode.java
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Alien Dictionary	https://github.com/DocLi/leetcode/blob/master/problems/src/depth_first_search/AlienDictionary.java
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Design Excel Sum Formula	https://github.com/DocLi/leetcode/blob/master/problems/src/design/Excel.java
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Divide and Conquer	https://github.com/DocLi/leetcode/blob/master/problems/src/divide_and_conquer
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Dynamic Programming	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming
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Best Time To Buy and Sell Stocks	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/BestTimeToBuyAndSellStocks.java
Climbing Stairs	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/ClimbingStairs.java
Coin Change	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/CoinChange.java
Coin Change 2	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/CoinChange2.java
Decode Ways	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/DecodeWays.java
House Robber	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/HouseRobber.java
House Robber II	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/HouseRobberII.java
Longest Increasing Subsequence	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/LongestIncreasingSubsequence.java
Longest Paliandromic Substring	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/LongestPaliandromicSubstring.java
Longest Palindromic Subsequence	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/LongestPalindromicSubsequence.java
Maximum Product Subarray	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/MaximumProductSubarray.java
Palindrome Partitioning II	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/PalindromePartitioningII.java
UniqueBinary Search Trees	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/UniqueBinarySearchTrees.java
Unique Binary Search Trees II	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/UniqueBinarySearchTreesII.java
WordBreak	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/WordBreak.java
WordBreak II	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/WordBreakII.java
Concatenated Words	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/ConcatenatedWords.java
Can I Win	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/CanIWin.java
Maximum Subarray	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/MaximumSubarray.java
Dungeon Game	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/DungeonGame.java
2 Keys Keyboard	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/TwoKeysKeyboard.java
Maximum Sum of 3 Non-Overlapping Subarrays	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/MaxSum3SubArray.java
Maximal Square	https://github.com/DocLi/leetcode/blob/master/problems/src/dynamic_programming/MaximalSquare.java
Greedy	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy
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Jump Game	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/JumpGame.java
Jump Game II	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/JumpGameII.java
Course Schedule III	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/CourseScheduleIII.java
GasStation	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/GasStation.java
Non-Overlapping Intervals	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/NonOverlappingIntervals.java
Minimum Number of Arrows to Burst Balloons	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/BurstBalloons.java
Queue Reconstruction By Height	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/QueueReconstructionByHeight.java
Task Scheduler	https://github.com/DocLi/leetcode/blob/master/problems/src/greedy/TaskScheduler.java
Hashing	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing
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Anagrams	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/Anagrams.java
Group Anagrams	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/GroupAnagrams.java
Kdiff Pairs In a Array	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/KdiffPairsInanArray.java
Sort Character by Frequency	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/SortCharByFrequency.java
Two Sum	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/TwoSum.java
Valid Anagram	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/ValidAnagram.java
Maximum Size Subarray Sum Equals k	https://github.com/DocLi/leetcode/blob/master/problems/src/hashing/MaximumSizeSubarraySumEqualsk.java
Heap	https://github.com/DocLi/leetcode/blob/master/problems/src/heap
	https://github.com/DocLi/leetcode#heap
Sliding Window Maximum	https://github.com/DocLi/leetcode/blob/master/problems/src/heap/SlidingWindowMaximum.java
The Skyline Problem	https://github.com/DocLi/leetcode/blob/master/problems/src/heap/TheSkylineProblem.java
Meeting Rooms II	https://github.com/DocLi/leetcode/blob/master/problems/src/heap/MeetingRoomsII.java
Linked List	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list
	https://github.com/DocLi/leetcode#linked-list
Intersection of two Linked-Lists	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/IntersectionOfTwoLists.java
Linked List Cycle	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/LinkedListCycle.java
Merge K Sorted Lists	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/MergeKSortedLists.java
Merge Two Sorted List	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/MergeTwoSortedList.java
Paliandrome List	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/PaliandromeList.java
Reverse Linked List	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/ReverseLinkedList.java
Delete Node in a Linked List	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/DeleteNode.java
Reverse Nodes in k-Group	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/ReverseNodesKGroup.java
Swap Nodes in Pairs	https://github.com/DocLi/leetcode/blob/master/problems/src/linked_list/SwapNodesInPairs.java
Math	https://github.com/DocLi/leetcode/blob/master/problems/src/math
	https://github.com/DocLi/leetcode#math
Add Two Numbers	https://github.com/DocLi/leetcode/blob/master/problems/src/math/AddTwoNumbers.java
Count Primes	https://github.com/DocLi/leetcode/blob/master/problems/src/math/CountPrimes.java
Rotate Function	https://github.com/DocLi/leetcode/blob/master/problems/src/math/RotateFunction.java
Water and Jug Problem	https://github.com/DocLi/leetcode/blob/master/problems/src/math/WaterAndJugProblem.java
Add Digits	https://github.com/DocLi/leetcode/blob/master/problems/src/math/AddDigits.java
Excel Sheet Column Title	https://github.com/DocLi/leetcode/blob/master/problems/src/math/ExcelSheetColumnTitle.java
Roman to Integer	https://github.com/DocLi/leetcode/blob/master/problems/src/math/RomanToInteger.java
Bulb Switcher II	https://github.com/DocLi/leetcode/blob/master/problems/src/math/BulbSwitcherII.java
Stack	https://github.com/DocLi/leetcode/blob/master/problems/src/stack
	https://github.com/DocLi/leetcode#stack
Min Stack	https://github.com/DocLi/leetcode/blob/master/problems/src/stack/MinStack.java
Valid Parentheses	https://github.com/DocLi/leetcode/blob/master/problems/src/stack/ValidParentheses.java
Largest Rectangle In Histogram	https://github.com/DocLi/leetcode/blob/master/problems/src/stack/LargestRectangleInHistogram.java
Implement Queue using Stacks	https://github.com/DocLi/leetcode/blob/master/problems/src/stack/MyQueue.java
Maximal Rectangle	https://github.com/DocLi/leetcode/blob/master/problems/src/stack/MaximalRectangle.java
String	https://github.com/DocLi/leetcode/blob/master/problems/src/string
	https://github.com/DocLi/leetcode#string
First Unique Character In a String	https://github.com/DocLi/leetcode/blob/master/problems/src/string/FirstUniqueCharacterInAString.java
Repeated Substring Pattern	https://github.com/DocLi/leetcode/blob/master/problems/src/string/RepeatedSubstringPattern.java
Reverse Words In a String	https://github.com/DocLi/leetcode/blob/master/problems/src/string/ReverseWordsInAString.java
ReverseWords II	https://github.com/DocLi/leetcode/blob/master/problems/src/string/ReverseWordsII.java
String to Integer	https://github.com/DocLi/leetcode/blob/master/problems/src/string/StringToInteger.java
Text Justification	https://github.com/DocLi/leetcode/blob/master/problems/src/string/TextJustification.java
ZigZag Conversion	https://github.com/DocLi/leetcode/blob/master/problems/src/string/ZigZagConversion.java
Implement StrStr	https://github.com/DocLi/leetcode/blob/master/problems/src/string/ImplementStrStr.java
Excel Sheet Column Number	https://github.com/DocLi/leetcode/blob/master/problems/src/string/ExcelSheetColumnNumber.java
Compare Version Numbers	https://github.com/DocLi/leetcode/blob/master/problems/src/string/CompareVersionNumbers.java
Valid Palindrome	https://github.com/DocLi/leetcode/blob/master/problems/src/string/ValidPalindrome.java
Simplify Path	https://github.com/DocLi/leetcode/blob/master/problems/src/string/SimplifyPath.java
Permutation in String	https://github.com/DocLi/leetcode/blob/master/problems/src/string/PermutationInString.java
Add Binary	https://github.com/DocLi/leetcode/blob/master/problems/src/string/AddBinary.java
Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree
	https://github.com/DocLi/leetcode#tree
Binaray Tree Right Side View	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/BinarayTreeRightSideView.java
Binary Tree Maximum Path Sum	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/BinaryTreeMaximumPathSum.java
Boundary of Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/BoundaryOfBinaryTree.java
Convert sorted array to BST	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/ConvertSortedArrayToBST.java
Lowest Common Ancestor of a Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/LCA.java
Lowest Common Ancestor of a BST	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/LowestCommonAncestorBST.java
Most Frequent Subtree Sum	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/MostFrequentSubtreeSum.java
Path Sum III	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/PathSumIII.java
Convert Postorder and Inorder traversal to Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/PostorderToBT.java
Convert Preorder and Inorder traversal to Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/PreorderToBT.java
Sorted Array to BST	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/SortedArrayToBST.java
Valid Binary Search Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/ValidBinarySearchTree.java
Largest BST Subtree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/LargestBSTSubtree.java
Closest Binary Search Tree Value	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/ClosestBinarySearchTreeValue.java
Inorder Successor in BST	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/InorderSuccessorInBST.java
Construct String From Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/ConstructStringFromBinaryTree.java
Flatten Binary Tree to Linked List	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/FlattenBinaryTree.java
Populating Next Right Pointers in Each Node	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/NextRightPointer.java
Populating Next Right Pointers in Each Node II	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/NextRightPointerII.java
Subtree of Another Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/SubtreeOfAnotherTree.java
Binary Tree Zigzag Level Order Traversal	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/ZigZagTraversal.java
Binary Tree Inorder Traversal	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/BinaryTreeInorderTraversal.java
Symmetric Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/SymmetricTree.java
Maximum Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/MaximumBinaryTree.java
Find Bottom Left Tree Value	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/FindBottomLeftTreeValue.java
Diameter of Binary Tree	https://github.com/DocLi/leetcode/blob/master/problems/src/tree/DiameterOfBinaryTree.java
Two Pointers	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers
	https://github.com/DocLi/leetcode#two-pointers
Four Sum	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/FourSum.java
Longest Substring Witout Repeats	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/LongestSubstringWitoutRepeats.java
Three Sum	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/ThreeSum.java
Trapping Rain Water	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/TrappingRainWater.java
3Sum Closest	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/ThreeSumClosest.java
Move Zeroes	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/MoveZeroes.java
Remove Duplicates	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/RemoveDuplicates.java
Minimum Size Subarray Sum	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/MinimumSizeSubarraySum.java
Minimum Window Substring	https://github.com/DocLi/leetcode/blob/master/problems/src/two_pointers/MinimumWindowSubstring.java
leetcode.com/problemset/algorithms/	https://leetcode.com/problemset/algorithms/
Readme	https://github.com/DocLi/leetcode#readme-ov-file
Please reload this page	https://github.com/DocLi/leetcode
Activity	https://github.com/DocLi/leetcode/activity
1 fork	https://github.com/DocLi/leetcode/forks
Report repository	https://github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2FDocLi%2Fleetcode&report=DocLi+%28user%29
Releases	https://github.com/DocLi/leetcode/releases
Packages 0	https://github.com/users/DocLi/packages?repo_name=leetcode
Please reload this page	https://github.com/DocLi/leetcode
Contributors	https://github.com/DocLi/leetcode/graphs/contributors
Please reload this page	https://github.com/DocLi/leetcode
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Privacy	https://docs.github.com/site-policy/privacy-policies/github-privacy-statement
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Community	https://github.community/
Docs	https://docs.github.com/
Contact	https://support.github.com?tags=dotcom-footer

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