https://www.teamblind.com/post/New-Year-Gift---Curated-List-of-Top-75-LeetCode-Questions-to-Save-Your-Time-OaM1orEU # Array - [x] [Two Sum](../blob/master/00_Arrays/coupleSum) `Easy` - [x] [Best Time to Buy and Sell Stock](../blob/master/00_Arrays/best-time-to-buy-and-sell-stock) `Easy` - [x] [Contains Duplicate](../blob/master/00_Arrays/ContainsDuplicate) `Easy` - [x] [Product of Array Except Self](../blob/master/00_Arrays/product-of-array-except-self) `Medium` - [x] [Maximum Subarray](../blob/master/00_Arrays/MaximumSubArray/) `Easy` - [x] [Maximum Product Subarray](../blob/master/00_Arrays/maximum-product-subarray) `Medium` - [x] [Find Minimum in Rotated Sorted Array](../blob/master/00_Arrays/find-minimum-in-rotated-sorted-array) `Medium` - [ ] Search in Rotated Sorted Array - https://leetcode.com/problems/search-in-rotated-sorted-array/ - [ ] 3Sum - https://leetcode.com/problems/3sum/ - [ ] Container With Most Water - https://leetcode.com/problems/container-with-most-water/ # Binary - [ ] Sum of Two Integers - https://leetcode.com/problems/sum-of-two-integers/ - [ ] Number of 1 Bits - https://leetcode.com/problems/number-of-1-bits/ - [ ] Counting Bits - https://leetcode.com/problems/counting-bits/ - [ ] Missing Number - https://leetcode.com/problems/missing-number/ - [ ] Reverse Bits - https://leetcode.com/problems/reverse-bits/ # Dynamic Programming - [ ] Climbing Stairs - https://leetcode.com/problems/climbing-stairs/ - [ ] Coin Change - https://leetcode.com/problems/coin-change/ - [ ] Longest Increasing Subsequence - https://leetcode.com/problems/longest-increasing-subsequence/ - [ ] Longest Common Subsequence - https://leetcode.com/problems/longest-common-subsequence/ - [ ] Word Break Problem - https://leetcode.com/problems/word-break/ - [ ] Combination Sum - https://leetcode.com/problems/combination-sum-iv/ - [ ] House Robber - https://leetcode.com/problems/house-robber/ - [ ] House Robber II - https://leetcode.com/problems/house-robber-ii/ - [ ] Decode Ways - https://leetcode.com/problems/decode-ways/ - [ ] Unique Paths - https://leetcode.com/problems/unique-paths/ - [ ] Jump Game - https://leetcode.com/problems/jump-game/ # Graph - [ ] Clone Graph - https://leetcode.com/problems/clone-graph/ - [ ] Course Schedule - https://leetcode.com/problems/course-schedule/ - [ ] Pacific Atlantic Water Flow - https://leetcode.com/problems/pacific-atlantic-water-flow/ - [ ] Number of Islands - https://leetcode.com/problems/number-of-islands/ - [ ] Longest Consecutive Sequence - https://leetcode.com/problems/longest-consecutive-sequence/ - [ ] Alien Dictionary (Leetcode Premium) - https://leetcode.com/problems/alien-dictionary/ - [ ] Graph Valid Tree (Leetcode Premium) - https://leetcode.com/problems/graph-valid-tree/ - [ ] Number of Connected Components in an Undirected Graph (Leetcode Premium) - https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/ # Interval - [x] [Insert Interval](../blob/master/00_Arrays/insert-interval) `Hard` - [x] [Merge Intervals](../blob/master/00_Arrays/merge-intervals/) `Medium` - [ ] Non-overlapping Intervals - https://leetcode.com/problems/non-overlapping-intervals/ - [ ] Meeting Rooms (Leetcode Premium) - https://leetcode.com/problems/meeting-rooms/ - [ ] Meeting Rooms II (Leetcode Premium) - https://leetcode.com/problems/meeting-rooms-ii/ # Linked List - [x] [Reverse a Linked List](../blob/master/02_LinkedLists/reverse-linked-list) `Easy` - [ ] Detect Cycle in a Linked List - https://leetcode.com/problems/linked-list-cycle/ - [x] [Merge Two Sorted Lists](../blob/master/02_LinkedLists/merge-two-sorted-lists) `Easy` - [x] [Merge K Sorted Lists](../blob/master/02_LinkedLists/merge-k-sorted-lists) `Hard` - [ ] Remove Nth Node From End Of List - https://leetcode.com/problems/remove-nth-node-from-end-of-list/ - [ ] Reorder List - https://leetcode.com/problems/reorder-list/ # Matrix - [x] [Set Matrix Zeroes](../blob/master/00_Arrays/set-matrix-zeroes) `Medium` - [ ] Spiral Matrix - https://leetcode.com/problems/spiral-matrix/ - [x] [Rotate Image](../blob/master/00_Arrays//rotate-image/) `Medium` - [ ] Word Search - https://leetcode.com/problems/word-search/ # String - [x] [Longest Substring Without Repeating Characters](../blob/master/01_Strings/longest-substring-without-repeating-characters) `Medium` - [ ] Longest Repeating Character Replacement - https://leetcode.com/problems/longest-repeating-character-replacement/ - [ ] Minimum Window Substring - https://leetcode.com/problems/minimum-window-substring/ - [x] [Valid Anagram](../blob/master/01_Strings/isAnagram) `Easy` - [ ] Group Anagrams - https://leetcode.com/problems/group-anagrams/ - [ ] Valid Parentheses - https://leetcode.com/problems/valid-parentheses/ - [ ] Valid Palindrome - https://leetcode.com/problems/valid-palindrome/ - [ ] Longest Palindromic Substring - https://leetcode.com/problems/longest-palindromic-substring/ - [ ] Palindromic Substrings - https://leetcode.com/problems/palindromic-substrings/ - [ ] Encode and Decode Strings (Leetcode Premium) - https://leetcode.com/problems/encode-and-decode-strings/ # Tree - [x] [Maximum Depth of Binary Tree](../blob/master/04_Trees_and_Graphs/maximum-depth-of-binary-tree) `Easy` - [x] [Same Tree](../blob/master/04_Trees_and_Graphs/sameTree) `Easy` - [x] [Invert/Flip Binary Tree](../blob/master/04_Trees_and_Graphs/invert-binary-tree/) `Easy` - [ ] Binary Tree Maximum Path Sum - https://leetcode.com/problems/binary-tree-maximum-path-sum/ - [ ] Binary Tree Level Order Traversal - https://leetcode.com/problems/binary-tree-level-order-traversal/ - [ ] Serialize and Deserialize Binary Tree - https://leetcode.com/problems/serialize-and-deserialize-binary-tree/ - [ ] Subtree of Another Tree - https://leetcode.com/problems/subtree-of-another-tree/ - [ ] Construct Binary Tree from Preorder and Inorder Traversal - https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/ - [ ] Validate Binary Search Tree - https://leetcode.com/problems/validate-binary-search-tree/ - [ ] Kth Smallest Element in a BST - https://leetcode.com/problems/kth-smallest-element-in-a-bst/ - [ ] Lowest Common Ancestor of BST - https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/ - [ ] Implement Trie (Prefix Tree) - https://leetcode.com/problems/implement-trie-prefix-tree/ - [ ] Add and Search Word - https://leetcode.com/problems/add-and-search-word-data-structure-design/ - [ ] Word Search II - https://leetcode.com/problems/word-search-ii/ # Heap - [ ] Merge K Sorted Lists - https://leetcode.com/problems/merge-k-sorted-lists/ - [ ] Top K Frequent Elements - https://leetcode.com/problems/top-k-frequent-elements/ - [ ] Find Median from Data Stream - https://leetcode.com/problems/find-median-from-data-stream/
https://www.teamblind.com/post/New-Year-Gift---Curated-List-of-Top-75-LeetCode-Questions-to-Save-Your-Time-OaM1orEU
Array
EasyEasyEasyMediumEasyMediumMediumBinary
Dynamic Programming
Graph
Interval
HardMediumLinked List
EasyEasyHardMatrix
MediumMediumString
MediumEasyTree
EasyEasyEasyHeap