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Title: GitHub - chingtat/leetcode-python: Leetcode Python Solution and Explanation. Also a Guide to Prepare for Software Engineer Interview. · GitHub

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Description: Leetcode Python Solution and Explanation. Also a Guide to Prepare for Software Engineer Interview. - chingtat/leetcode-python

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https://github.com/chingtat/leetcode-python#leetcode-similar-problems
https://github.com/chingtat/leetcode-python#two-pointers
Container With Most Waterhttps://leetcode.com/problems/container-with-most-water/
Two Sum II - Input array is sortedhttps://leetcode.com/problems/two-sum-ii-input-array-is-sorted
Squares of a Sorted Arrayhttps://leetcode.com/problems/squares-of-a-sorted-array
https://github.com/chingtat/leetcode-python#recursion
Number of Atomshttps://leetcode.com/problems/number-of-atoms
736https://leetcode.com/problems/parse-lisp-expression/
394https://leetcode.com/problems/decode-string/
Score of Parentheseshttps://leetcode.com/problems/score-of-parentheses/
https://github.com/chingtat/leetcode-python#divide-and-conquer
Majority Elementhttps://leetcode.com/problems/majority-element
Count of Smaller Numbers After Selfhttps://leetcode.com/problems/count-of-smaller-numbers-after-self/
https://github.com/chingtat/leetcode-python#search
Letter Combinations of a Phone Numberhttps://leetcode.com/problems/letter-combinations-of-a-phone-number
39https://leetcode.com/problems/combination-sum/
40https://leetcode.com/problems/combination-sum-ii/
77https://leetcode.com/problems/combinations/
78https://leetcode.com/problems/subsets/
90https://leetcode.com/problems/subsets-ii/
216https://leetcode.com/problems/combination-sum-iii/
Permutationshttps://leetcode.com/problems/permutations/
47https://leetcode.com/problems/permutations-ii/
784https://leetcode.com/problems/letter-case-permutation/
943https://leetcode.com/problems/find-the-shortest-superstring
996https://leetcode.com/problems/number-of-squareful-arrays/
Generate Parentheseshttps://leetcode.com/problems/generate-parentheses/
301https://leetcode.com/problems/remove-invalid-parentheses/
Sudoku Solverhttps://leetcode.com/problems/sudoku-solver
51https://leetcode.com/problems/n-queens
52https://leetcode.com/problems/n-queens-ii
Word Searchhttps://leetcode.com/problems/word-search/
212https://leetcode.com/problems/word-search-ii/
Word Ladderhttps://leetcode.com/problems/word-ladder/
126https://leetcode.com/problems/word-ladder-ii/
752https://leetcode.com/problems/open-the-lock/
01 Matrixhttps://leetcode.com/problems/01-matrix/
675https://leetcode.com/problems/cut-off-trees-for-golf-event/
934https://leetcode.com/problems/shortest-bridge/
Partition to K Equal Sum Subsetshttps://leetcode.com/problems/partition-to-k-equal-sum-subsets
93https://leetcode.com/problems/restore-ip-addresses/
131https://leetcode.com/problems/palindrome-partitioning/
241https://leetcode.com/problems/different-ways-to-add-parentheses/
282https://leetcode.com/problems/expression-add-operators/
842https://leetcode.com/problems/split-array-into-fibonacci-sequence/
https://github.com/chingtat/leetcode-python#hash-table
Two Sumhttps://leetcode.com/problems/two-sum/
560https://leetcode.com/problems/subarray-sum-equals-k/
https://github.com/chingtat/leetcode-python#list
Add Two Numbershttps://leetcode.com/problems/add-two-numbers/
445https://leetcode.com/problems/add-two-numbers-ii/
Swap Nodes in Pairshttps://leetcode.com/problems/swap-nodes-in-pairs/
Reverse Linked Listhttps://leetcode.com/problems/reverse-linked-list/
Linked List Cyclehttps://leetcode.com/problems/linked-list-cycle/
142https://leetcode.com/problems/linked-list-cycle-ii
Merge k Sorted Listshttps://leetcode.com/problems/merge-k-sorted-lists/
21https://leetcode.com/problems/merge-two-sorted-lists/
Insertion Sort Listhttps://leetcode.com/problems/insertion-sort-list/
Sort Listhttps://leetcode.com/problems/sort-list/
Design Linked Listhttps://leetcode.com/problems/design-linked-list
https://github.com/chingtat/leetcode-python#tree
Binary Tree Inorder Traversalhttps://leetcode.com/problems/binary-tree-inorder-traversal/
589https://leetcode.com/problems/n-ary-tree-preorder-traversal
590https://leetcode.com/problems/n-ary-tree-postorder-traversal
Same Treehttps://leetcode.com/problems/same-tree/
101https://leetcode.com/problems/symmetric-tree/
104https://leetcode.com/problems/maximum-depth-of-binary-tree/
110https://leetcode.com/problems/balanced-binary-tree/
111https://leetcode.com/problems/minimum-depth-of-binary-tree
572https://leetcode.com/problems/subtree-of-another-tree
965https://leetcode.com/problems/univalued-binary-tree/
Binary Tree Level Order Traversalhttps://leetcode.com/problems/binary-tree-level-order-traversal/
107https://leetcode.com/problems/binary-tree-level-order-traversal-ii
429https://leetcode.com/problems/n-ary-tree-level-order-traversal
872https://leetcode.com/problems/leaf-similar-trees/
987https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
Binary Tree Pruninghttps://leetcode.com/problems/binary-tree-pruning/
669https://leetcode.com/problems/trim-a-binary-search-tree/
Path Sumhttps://leetcode.com/problems/path-sum/
113https://leetcode.com/problems/path-sum-ii
437https://leetcode.com/problems/path-sum-iii
Binary Tree Maximum Path Sumhttps://leetcode.com/problems/binary-tree-maximum-path-sum/
543https://leetcode.com/problems/diameter-of-binary-tree/
687https://leetcode.com/problems/longest-univalue-path/
Sum Root to Leaf Numbershttps://leetcode.com/problems/sum-root-to-leaf-numbers/
257https://leetcode.com/problems/binary-tree-paths/
Lowest Common Ancestor of a Binary Treehttps://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/
235https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree
Serialize and Deserialize Binary Treehttps://leetcode.com/problems/serialize-and-deserialize-binary-tree/
449https://leetcode.com/problems/serialize-and-deserialize-bst
Most Frequent Subtree Sumhttps://leetcode.com/problems/most-frequent-subtree-sum/
Binary Tree Camerashttps://leetcode.com/problems/binary-tree-cameras/
337https://leetcode.com/problems/house-robber-iii/
979https://leetcode.com/problems/distribute-coins-in-binary-tree
https://github.com/chingtat/leetcode-python#binary-search
Search Insert Positionhttps://leetcode.com/problems/search-insert-position/
34https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/
704https://leetcode.com/problems/binary-search/
981https://leetcode.com/problems/time-based-key-value-store
Search in Rotated Sorted Arrayhttps://leetcode.com/problems/search-in-rotated-sorted-array
81https://leetcode.com/problems/search-in-rotated-sorted-array-ii/
153https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/
154https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii
162https://leetcode.com/problems/find-peak-element
852https://leetcode.com/problems/peak-index-in-a-mountain-array/
Sqrt(x)https://leetcode.com/problems/sqrtx
Search a 2D Matrixhttps://leetcode.com/problems/search-a-2d-matrix/
Koko Eating Bananashttps://leetcode.com/problems/koko-eating-bananas/
1011https://leetcode.com/problems/capacity-to-ship-packages-within-d-days/
Kth Smallest Element in a Sorted Matrixhttps://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/
668https://leetcode.com/problems/kth-smallest-number-in-multiplication-table/
Swim in Rising Waterhttps://leetcode.com/problems/swim-in-rising-water/
174https://leetcode.com/problems/dungeon-game/
875https://leetcode.com/problems/koko-eating-bananas/
Median of Two Sorted Arrayshttps://leetcode.com/problems/median-of-two-sorted-arrays/
Find K-th Smallest Pair Distancehttps://leetcode.com/problems/find-k-th-smallest-pair-distance/
786https://leetcode.com/problems/k-th-smallest-prime-fraction/
https://github.com/chingtat/leetcode-python#binary-search-tree
Validate Binary Search Treehttps://leetcode.com/problems/validate-binary-search-tree/
530https://leetcode.com/problems/minimum-absolute-difference-in-bst
Search in a Binary Search Treehttps://leetcode.com/problems/search-in-a-binary-search-tree/
701https://leetcode.com/problems/insert-into-a-binary-search-tree/
Kth Smallest Element in a BSThttps://leetcode.com/problems/kth-smallest-element-in-a-bst
Recover Binary Search Treehttps://leetcode.com/problems/recover-binary-search-tree/
Convert Sorted Array to Binary Search Treehttps://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/
Find Mode in Binary Search Treehttps://leetcode.com/problems/find-mode-in-binary-search-tree/
Delete Node in a BSThttps://leetcode.com/problems/delete-node-in-a-bst/
https://github.com/chingtat/leetcode-python#graph
Clone Graphhttps://leetcode.com/problems/clone-graph/
138https://leetcode.com/problems/copy-list-with-random-pointer/
Number of Islandshttps://leetcode.com/problems/number-of-islands/
547https://leetcode.com/problems/friend-circles/
695https://leetcode.com/problems/max-area-of-island
733https://leetcode.com/problems/flood-fill/
827https://leetcode.com/problems/making-a-large-island/
Keys and Roomshttps://leetcode.com/problems/keys-and-rooms/
Course Schedulehttps://leetcode.com/problems/course-schedule/
210https://leetcode.com/problems/course-schedule-ii/
802https://leetcode.com/problems/find-eventual-safe-states
Evaluate Divisionhttps://leetcode.com/problems/evaluate-division
839https://leetcode.com/problems/similar-string-groups
952https://leetcode.com/problems/largest-component-size-by-common-factor/
990https://leetcode.com/problems/satisfiability-of-equality-equations
721https://leetcode.com/problems/accounts-merge/
Is Graph Bipartite?https://leetcode.com/problems/is-graph-bipartite
Redundant Connectionhttps://leetcode.com/problems/redundant-connection
685https://leetcode.com/problems/redundant-connection-ii
787https://leetcode.com/problems/cheapest-flights-within-k-stops/
Network Delay Timehttps://leetcode.com/problems/network-delay-time
882https://leetcode.com/problems/reachable-nodes-in-subdivided-graph/
Shortest Path Visiting All Nodeshttps://leetcode.com/problems/shortest-path-visiting-all-nodes/
815https://leetcode.com/problems/bus-routes/
864https://leetcode.com/problems/shortest-path-to-get-all-keys/
924https://leetcode.com/problems/minimize-malware-spread/
Find the Shortest Superstringhttps://leetcode.com/problems/find-the-shortest-superstring/
980https://leetcode.com/problems/unique-paths-iii/
996https://leetcode.com/problems/number-of-squareful-arrays/
Regions Cut By Slasheshttps://leetcode.com/problems/regions-cut-by-slashes/
Reconstruct Itineraryhttps://leetcode.com/problems/reconstruct-itinerary/
Critical Connections in a Networkhttps://leetcode.com/problems/critical-connections-in-a-network/
https://github.com/chingtat/leetcode-python#dynamic-programming
Climbing Stairshttps://leetcode.com/problems/climbing-stairs
746https://leetcode.com/problems/min-cost-climbing-stairs
Range Sum Query - Immutablehttps://leetcode.com/problems/range-sum-query-immutable
Maximum Subarrayhttps://leetcode.com/problems/maximum-subarray
121https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
House Robberhttps://leetcode.com/problems/house-robber/
213https://leetcode.com/problems/house-robber-ii/
309https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/
740https://leetcode.com/problems/delete-and-earn/
790https://leetcode.com/problems/domino-and-tromino-tiling/
801https://leetcode.com/problems/minimum-swaps-to-make-sequences-increasing/
Word Breakhttps://leetcode.com/problems/word-break
140https://leetcode.com/problems/word-break-ii
818https://leetcode.com/problems/race-car/
Longest Increasing Subsequencehttps://leetcode.com/problems/longest-increasing-subsequence/
673https://leetcode.com/problems/number-of-longest-increasing-subsequence
Edit Distancehttps://leetcode.com/problems/edit-distance
10https://leetcode.com/problems/regular-expression-matching
44https://leetcode.com/problems/wildcard-matching/
97https://leetcode.com/problems/interleaving-string
115https://leetcode.com/problems/distinct-subsequences/
583https://leetcode.com/problems/delete-operation-for-two-strings/
712https://leetcode.com/problems/minimum-ascii-delete-sum-for-two-strings
Coin Changehttps://leetcode.com/problems/coin-change
377https://leetcode.com/problems/combination-sum-iv/
416https://leetcode.com/problems/partition-equal-subset-sum/
494https://leetcode.com/problems/target-sum
Largest Sum of Averageshttps://leetcode.com/problems/largest-sum-of-averages/
Burst Balloonshttps://leetcode.com/problems/burst-balloons/
664https://leetcode.com/problems/strange-printer/
1024https://leetcode.com/problems/video-stitching/
1039https://leetcode.com/problems/minimum-score-triangulation-of-polygon/
Cherry Pickuphttps://leetcode.com/problems/cherry-pickup/
Remove Boxeshttps://leetcode.com/problems/remove-boxes
Find the Shortest Superstringhttps://leetcode.com/problems/find-the-shortest-superstring/
980https://leetcode.com/problems/unique-paths-iii/
996https://leetcode.com/problems/number-of-squareful-arrays/
Unique Pathshttps://leetcode.com/problems/unique-paths
63https://leetcode.com/problems/unique-paths-ii
64https://leetcode.com/problems/minimum-path-sum
120https://leetcode.com/problems/triangle
174https://leetcode.com/problems/dungeon-game
931https://leetcode.com/problems/minimum-falling-path-sum/
Maximal Rectanglehttps://leetcode.com/problems/delete-operation-for-two-strings/
221https://leetcode.com/problems/maximal-square/
304https://leetcode.com/problems/range-sum-query-2d-immutable
Knight Probability in Chessboardhttps://leetcode.com/problems/knight-probability-in-chessboard/
576https://leetcode.com/problems/out-of-boundary-paths/
935https://leetcode.com/problems/knight-dialer/
Coin Changehttps://leetcode.com/problems/reconstruct-itinerary/
377https://leetcode.com/problems/combination-sum-iv/
416https://leetcode.com/problems/partition-equal-subset-sum/
494https://leetcode.com/problems/target-sum/
1043https://leetcode.com/problems/partition-array-for-maximum-sum/
1049https://leetcode.com/problems/last-stone-weight-ii/
1220https://leetcode.com/problems/count-vowels-permutation/
1230https://leetcode.com/problems/toss-strange-coins/
1262https://leetcode.com/problems/greatest-sum-divisible-by-three/
1269https://leetcode.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps/
Largest Sum of Averageshttps://leetcode.com/problems/largest-sum-of-averages/
1278https://leetcode.com/problems/palindrome-partitioning-iii/
1335https://leetcode.com/problems/minimum-difficulty-of-a-job-schedule/
410https://leetcode.com/problems/split-array-largest-sum/
Dice Roll Simulationhttps://leetcode.com/problems/dice-roll-simulation/
Burst Balloonshttps://leetcode.com/problems/burst-balloons/
664https://leetcode.com/problems/strange-printer/
1024https://leetcode.com/problems/video-stitching/
1039https://leetcode.com/problems/minimum-score-triangulation-of-polygon/
1140https://leetcode.com/problems/stone-game-ii/
1130https://leetcode.com/problems/minimum-cost-tree-from-leaf-values/
Cherry Pickuphttps://leetcode.com/problems/cherry-pickup/
Remove Boxeshttps://leetcode.com/problems/remove-boxes/
Find the Shortest Superstringhttps://leetcode.com/problems/find-the-shortest-superstring/
980https://leetcode.com/problems/unique-paths-iii/
996https://leetcode.com/problems/number-of-squareful-arrays/
1125https://leetcode.com/problems/smallest-sufficient-team/
https://github.com/chingtat/leetcode-python#advanced
Implement Trie (Prefix Tree)https://leetcode.com/problems/implement-trie-prefix-tree
648https://leetcode.com/problems/replace-words/
676https://leetcode.com/problems/implement-magic-dictionary
677https://leetcode.com/problems/map-sum-pairs
720https://leetcode.com/problems/longest-word-in-dictionary
745https://leetcode.com/problems/prefix-and-suffix-search
Range Sum Query - Mutablehttps://leetcode.com/problems/range-sum-query-mutable
Online Stock Spanhttps://leetcode.com/problems/online-stock-span
907https://leetcode.com/problems/sum-of-subarray-minimums
1019https://leetcode.com/problems/next-greater-node-in-linked-list/
Sliding Window Maximumhttps://leetcode.com/problems/sliding-window-maximum/
listhttps://docs.google.com/spreadsheets/d/1SbpY-04Cz8EWw3A_LBUmDEXKUMO31DBjfeMoA0dlfIA/edit#gid=126913158
youtubehttps://www.youtube.com/user/xxfflower/videos
websitehttps://zxi.mytechroad.com/blog/leetcode-problem-categories/
https://github.com/chingtat/leetcode-python#software-engineer-interview
https://github.com/chingtat/leetcode-python#overall-mindset
How to Get a Job at the Big 4https://youtu.be/YJZCUhxNCv8
How I Got a Job at Google as a Software Engineerhttps://www.youtube.com/watch?v=UPO-9iMjBpc
The #1 Daily Habit of Those Who Dominatehttps://podcasts.apple.com/tw/podcast/the-mfceo-project/id1012570406?i=1000412624447
https://github.com/chingtat/leetcode-python#prepare-in-a-structural-way
How should I prepare for my Google interview if I have 1 month left and I’m applying for a software engineer role?https://www.quora.com/How-should-I-prepare-for-my-Google-interview-if-I-have-1-month-left-and-I%E2%80%99m-applying-for-a-software-engineer-role/answer/Anthony-D-Mays?ch=10&share=5c488000&srid=W0jqp
How can I get a job at Facebook or Google in 6 months?https://www.quora.com/How-can-I-get-a-job-at-Facebook-or-Google-in-6-months-I-need-a-concise-work-plan-to-build-a-good-enough-skill-set-Should-I-join-some-other-start-up-or-build-my-own-projects-start-up-Should-I-just-focus-on-practicing-data-structures-and-algorithms/answer/Jimmy-Saade
What should I know from the CLRS 3rd edition book if my aim is to get into Google?https://www.quora.com/What-should-I-know-from-the-CLRS-3rd-edition-book-if-my-aim-is-to-get-into-Google/answer/Jimmy-Saade
https://github.com/chingtat/leetcode-python#data-structures-and-algorithms-for-beginners
this coursehttps://classroom.udacity.com/courses/ud513
https://github.com/chingtat/leetcode-python#system-design
More resourcehttps://github.com/shashank88/system_design
Architecture 101https://engineering.videoblocks.com/web-architecture-101-a3224e126947
Systems Design Interview Conceptshttps://www.youtube.com/watch?v=REB_eGHK_P4
Narendra's Youtube Channelhttps://www.youtube.com/channel/UCn1XnDWhsLS5URXTi5wtFTA/playlists
https://github.com/chingtat/leetcode-python#knowledge-base-question
Session vs Cookiehttps://medium.com/@chriswrite/session-vs-cookie-software-engineer-top-asked-question-1-9bdbc0766739
Token Authenticationhttps://medium.com/@chriswrite/token-authentication-software-engineer-top-asked-question-2-76dd2ed7c2d5
TCP/UDPhttps://www.youtube.com/watch?v=Vdc8TCESIg8
HTTPS, CA, PKIhttps://www.youtube.com/watch?v=i-rtxrEz_E8
Sockethttps://www.youtube.com/watch?v=Y0g3M4VG6Ns
WebSockethttps://www.youtube.com/watch?v=i5OVcTdt_OU
HTTP KeepAlivehttps://www.youtube.com/watch?v=j8lgFaIajko
Stack memory vs Heap memoryhttps://www.gribblelab.org/CBootCamp/7_Memory_Stack_vs_Heap.html
CORShttps://www.youtube.com/watch?v=eWEgUcHPle0
https://github.com/chingtat/leetcode-python#others
https://github.com/chingtat/leetcode-python#resume
https://drive.google.com/file/d/10b9NZDhPbUOW_C7108IKe9ev6Ed2UG7F/viewhttps://drive.google.com/file/d/10b9NZDhPbUOW_C7108IKe9ev6Ed2UG7F/view
https://github.com/chingtat/leetcode-python#interview-question-survey
https://www.glassdoor.com/index.htmhttps://www.glassdoor.com/index.htm
https://www.careercup.com/https://www.careercup.com/
https://github.com/chingtat/leetcode-python#offer-negotiation
https://haseebq.com/my-ten-rules-for-negotiating-a-job-offer/https://haseebq.com/my-ten-rules-for-negotiating-a-job-offer/
Readme https://github.com/chingtat/leetcode-python#readme-ov-file
Please reload this pagehttps://github.com/chingtat/leetcode-python
Activityhttps://github.com/chingtat/leetcode-python/activity
0 forkshttps://github.com/chingtat/leetcode-python/forks
Report repository https://github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fchingtat%2Fleetcode-python&report=chingtat+%28user%29
Releaseshttps://github.com/chingtat/leetcode-python/releases
Packages 0https://github.com/users/chingtat/packages?repo_name=leetcode-python
Please reload this pagehttps://github.com/chingtat/leetcode-python
Contributorshttps://github.com/chingtat/leetcode-python/graphs/contributors
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https://github.com
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Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

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