Leetcode
Arrays & Hashing
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 1-Two Sum | cpp / python | - | v |
| 49-Group Anagrams | cpp / python | - | v |
| 217-Contains Duplicate | cpp / python | - | v |
| 242-Valid Anagram | cpp / python | - | v |
| 347-Top K Frequent Elements | cpp / python | *Heap & *priority queue | v |
| 238-Product of Array Except Self | cpp / python | - | v |
| 36-Valid Sudoku | cpp / python | test | |
| 383-Ransom Note | cpp / python | - | |
| 169-Majority Element | cpp / python | - | *Boyer-Moore Algorithm |
| 283-MoveZeros | cpp / python | - | |
| 128-Longest Consecutive Sequence | cpp / python | not complete yet | v |
Two Pointers
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 167-Two Sum II | cpp / python | - | |
| 125-Valid Palindrome | cpp / python | - | v |
| 15-3Sum | cpp / python | - | v |
| 11-Container With Most Water | cpp / python | not complete yet | v |
Sliding Window
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 121-Best Time to Buy and Sell Stock | cpp / python | - | v |
| 3-Longest Substring Without Repeating Characters | cpp / python | - | v |
| 424-Longest Repeating Character Replacement | cpp / python | *** | v |
| 567-Permutation in String | cpp / python | not complete yet |
Stack
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 20-Valid Parentheses | cpp / python | - | v |
| 155-Min Stack | cpp / python | - | |
| 150-Evaluate Reverse Polish Notation | cpp / python | - | |
| 22-Generate Parentheses | cpp / python | ** learn backtracking | |
| 232-Implement Queue using Stacks | cpp / python | not complete yet | |
| 394-Decode String | cpp / python | not complete yet | |
| 844-Backspace String Compare | cpp / python | not complete yet |
Binary Search
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 704-Binary Search | cpp / python | - | |
| 74-Search a 2D Matrix | cpp / python | - | |
| 875-KoKo Eating Bananas | cpp / python | *** | |
| 33-Search in Rotated Sorted Array | cpp / python | ***conditions | v |
| 153-Find Minimum in Rotated Sorted Array | cpp / python | not complete yet | v |
| 981-Time Based Key-Value Store | cpp / python | not complete yet | v |
Linked List
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 206-Reverse Linked List | cpp / python | *Recursive method | v |
| 21-Merge Two Sorted Lists | cpp / python | *pointer | v |
| 143-Reorder List | cpp / python | ***slow-fast | v |
| 19-Remove Nth Node From End of List | cpp / python | ***slow-fast | v |
| 138-Copy List with Random Pointer | cpp / python | *hashmap | v |
| 2-Add Two Numbers | cpp / python | - |
Trees
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 226-Invert Binary Tree | cpp / python | - | v |
1-D Dynamic Programming
| Problem | Solutions | Todo | Blind75? |
|---|---|---|---|
| 198-House Robber | cpp / python | - |