Leetcode Blind 75 (Grind 75) part one
14 videos • 84 views • by LetsCode This is one of the famous leetcode problem list made by shunyang, a facebook staff software engineer, and it is still very popular in today's famous IT company's interviews. This is only part one, including 46 questions and check part two (29) questions. So all together, there are 75 most important problems in leetcode. The list is catogorized below: ## Array - [1] [Two Sum](https://leetcode.com/problems/two-sum/) - [2] [Best Time to Buy and Sell Stock](https://leetcode.com/problems/best-ti...) - [3] [Contains Duplicate](https://leetcode.com/problems/contain...) - [4] [Product of Array Except Self](https://leetcode.com/problems/product...) - [5] [Maximum Subarray](https://leetcode.com/problems/maximum...) - [6] [Maximum Product Subarray](https://leetcode.com/problems/maximum...) - [7] [Find Minimum in Rotated Sorted Array](https://leetcode.com/problems/find-mi...) - [8] [Search in Rotated Sorted Array](https://leetcode.com/problems/search-...) - [9] [3Sum](https://leetcode.com/problems/3sum/) - [10] [Container With Most Water](https://leetcode.com/problems/contain...) --- ## Linked List - [1] [Reverse a Linked List](https://leetcode.com/problems/reverse...) - [2] [Detect Cycle in a Linked List](https://leetcode.com/problems/linked-...) - [3] [Merge Two Sorted Lists](https://leetcode.com/problems/merge-t...) - [4] [Merge K Sorted Lists](https://leetcode.com/problems/merge-k...) - [5] [Remove Nth Node From End Of List](https://leetcode.com/problems/remove-...) - [6] [Reorder List](https://leetcode.com/problems/reorder...) --- ## Matrix - [1] [Set Matrix Zeroes](https://leetcode.com/problems/set-mat...) - [2] [Spiral Matrix](https://leetcode.com/problems/spiral-...) - [3] [Rotate Image](https://leetcode.com/problems/rotate-...) - [4] [Word Search](https://leetcode.com/problems/word-se...) --- ## String - [1] [Longest Substring Without Repeating Characters](https://leetcode.com/problems/longest...) - [2] [Longest Repeating Character Replacement](https://leetcode.com/problems/longest...) - [3] [Minimum Window Substring](https://leetcode.com/problems/minimum...) - [4] [Valid Anagram](https://leetcode.com/problems/valid-a...) - [5] [Group Anagrams](https://leetcode.com/problems/group-a...) - [6] [Valid Parentheses](https://leetcode.com/problems/valid-p...) - [7] [Valid Palindrome](https://leetcode.com/problems/valid-p...) - [8] [Longest Palindromic Substring](https://leetcode.com/problems/longest...) - [9] [Palindromic Substrings](https://leetcode.com/problems/palindr...) - [10] [Encode and Decode Strings (Leetcode Premium)](https://leetcode.com/problems/encode-...) --- ## Tree - [1] [Maximum Depth of Binary Tree](https://leetcode.com/problems/maximum...) - [2] [Same Tree](https://leetcode.com/problems/same-tree/) - [3] [Invert/Flip Binary Tree](https://leetcode.com/problems/invert-...) - [4] [Binary Tree Maximum Path Sum](https://leetcode.com/problems/binary-...) - [5] [Binary Tree Level Order Traversal](https://leetcode.com/problems/binary-...) - [6] [Serialize and Deserialize Binary Tree](https://leetcode.com/problems/seriali...) - [7] [Subtree of Another Tree](https://leetcode.com/problems/subtree...) - [8] [Construct Binary Tree from Preorder and Inorder Traversal](https://leetcode.com/problems/constru...) - [9] [Validate Binary Search Tree](https://leetcode.com/problems/validat...) - [10] [Kth Smallest Element in a BST](https://leetcode.com/problems/kth-sma...) - [11] [Lowest Common Ancestor of BST](https://leetcode.com/problems/lowest-...) - [12] [Implement Trie (Prefix Tree)](https://leetcode.com/problems/impleme...) - [13] [Add and Search Word](https://leetcode.com/problems/add-and...) - [14] [Word Search II](https://leetcode.com/problems/word-se...) --- ## Heap - [1] [Merge K Sorted Lists](https://leetcode.com/problems/merge-k...) - [2] [Top K Frequent Elements](https://leetcode.com/problems/top-k-f...) - [3] [Find Median from Data Stream](https://leetcode.com/problems/find-me...)