Leetcode练习题 极客时间算法训练营题目练习

基础算法

• Easy Two Sum https://leetcode.com/problems/two-sum/
• EasyValid Parentheses https://leetcode.com/problems/valid-parentheses/
• MediumDecode Stringhttps://leetcode.com/problems/decode-string/
• HardLRU Cachehttps://leetcode.com/problems/lru-cache/submissions/
• MediumImplement Trie (Prefix Tree)https://leetcode.com/problems/implement-trie-prefix-tree/
• MediumAdd and Search Word - Data structure designhttps://leetcode.com/problems/add-and-search-word-data-structure-design/
• HardWord Search IIhttps://leetcode.com/problems/word-search-ii/
• EasyFind the Differencehttps://leetcode.com/problems/find-the-difference/
• EasyWord Patternhttps://leetcode.com/problems/word-pattern/
• EasyFirst Unique Character in a Stringhttps://leetcode.com/problems/first-unique-character-in-a-string
• MediumLongest Substring Without Repeating Charactershttps://leetcode.com/problems/longest-substring-without-repeating-characters
• HardMinimum Window Substringhttps://leetcode.com/problems/minimum-window-substring/
• EasyMerge Two Sorted Listshttps://leetcode.com/problems/merge-two-sorted-lists
• EasyLinked List Cyclehttps://leetcode.com/problems/linked-list-cycle
• Medium"Linked List Cycle II"https://leetcode.com/problems/linked-list-cycle-ii
• EasyReverse Linked Listhttps://leetcode.com/problems/reverse-linked-list
• MediumReverse Linked List IIhttps://leetcode.com/problems/reverse-linked-list-ii
• MediumRotate Listhttps://leetcode.com/problems/rotate-list
• MediumSwap Nodes in Pairshttps://leetcode.com/problems/swap-nodes-in-pairs
• EasySort Array By Parityhttps://leetcode.com/problems/sort-array-by-parity/
• EasySort Array By Parity IIhttps://leetcode.com/problems/sort-array-by-parity-ii/
• EasySquares of a Sorted Arrayhttps://leetcode.com/problems/squares-of-a-sorted-array/
• EasyPeak Index in a Mountain Arrayhttps://leetcode.com/problems/peak-index-in-a-mountain-array
• HardSearch in Rotated Sorted Arrayhttps://leetcode.com/problems/search-in-rotated-sorted-array
• MediumSearch in Rotated Sorted Array IIhttps://leetcode.com/problems/search-in-rotated-sorted-array-ii/
• MediumFind Minimum in Rotated Sorted Arrayhttps://leetcode.com/problems/find-minimum-in-rotated-sorted-array/
• HardFind Minimum in Rotated Sorted Array IIhttps://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii/
• MediumSearch a 2D Matrixhttps://leetcode.com/problems/search-a-2d-matrix
• MediumSatisfiability of Equality Equationshttps://leetcode.com/problems/satisfiability-of-equality-equations/
• MediumFriend Circleshttps://leetcode.com/problems/friend-circles/
• MediumAccounts Mergehttps://leetcode.com/problems/accounts-merge/

深度优先搜索

• Easy Maximum Depth of Binary Tree https://leetcode.com/problems/maximum-depth-of-binary-tree
• EasyPath Sum https://leetcode.com/problems/path-sum/
• MediumPath Sum IIhttps://leetcode.com/problems/path-sum-ii/
• MediumSurrounded Regionshttps://leetcode.com/problems/surrounded-regions/
• MediumNumber of Islandshttps://leetcode.com/problems/number-of-islands/
• MediumMax Area of Islandhttps://leetcode.com/problems/max-area-of-island/
• MediumDistribute Coins in Binary Treehttps://leetcode.com/problems/distribute-coins-in-binary-tree/

回溯

• Hard N-Queens https://leetcode.com/problems/n-queens/
• HardN-Queens II https://leetcode.com/problems/n-queens-ii/
• MediumSudoku Solverhttps://leetcode.com/problems/sudoku-solver/
• HardUnique Paths IIIhttps://leetcode.com/problems/unique-paths-iii/
• MediumWord Searchhttps://leetcode.com/problems/word-search/

分治

• Medium Search a 2D Matrix II https://leetcode.com/problems/search-a-2d-matrix-ii/
• MediumMerge k Sorted Lists https://leetcode.com/problems/merge-k-sorted-lists
• MediumDifferent Ways to Add Parentheseshttps://leetcode.com/problems/different-ways-to-add-parentheses
• HardExpression Add Operatorshttps://leetcode.com/problems/expression-add-operators
• MediumKth Largest Element in an Arrayhttps://leetcode.com/problems/kth-largest-element-in-an-array

动态规划

• Easy Min Cost Climbing Stairs https://leetcode.com/problems/min-cost-climbing-stairs
• EasyClimbing Stairs https://leetcode.com/problems/climbing-stairs
• EasyUnique Pathshttps://leetcode.com/problems/unique-paths/
• MediumMinimum Path Sumhttps://leetcode.com/problems/minimum-path-sum/
• EasyMaximum Subarrayhttps://leetcode.com/problems/maximum-subarray/
• MediumMaximum Product Subarrayhttps://leetcode.com/problems/maximum-product-subarray/
• EasyBest Time to Buy and Sell Stockhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock
• EasyBest Time to Buy and Sell Stock IIhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/
• HardBest Time to Buy and Sell Stock IIIhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/
• HardBest Time to Buy and Sell Stock IVhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv/
• MediumBest Time to Buy and Sell Stock with Cooldownhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/
• MediumBest Time to Buy and Sell Stock with Transaction Feehttps://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee
• MediumCoin Changehttps://leetcode.com/problems/coin-change
• MediumCoin Change 2https://leetcode.com/problems/coin-change-2
• HardEdit Distancehttps://leetcode.com/problems/edit-distance
• HardDistinct Subsequenceshttps://leetcode.com/problems/distinct-subsequences/
• HardLargest Rectangle in Histogramhttps://leetcode.com/problems/largest-rectangle-in-histogram/
• HardMaximal Rectanglehttps://leetcode.com/problems/maximal-rectangle/
• MediumMaximal Squarehttps://leetcode.com/problems/maximal-square/
• MediumMinimum Cost For Ticketshttps://leetcode.com/problems/minimum-cost-for-tickets/
• EasyRange Sum Query - Immutablehttps://leetcode.com/problems/range-sum-query-immutable/
• MediumRange Sum Query 2D - Immutablehttps://leetcode.com/problems/range-sum-query-2d-immutable/
• MediumLongest Increasing Subsequencehttps://leetcode.com/problems/longest-increasing-subsequence

sequenceDiagram
A->>B: How are you?
B->>A: Great!
A->>C: How are you?
C->>A: Great!