| 1 | Reverse Linked List | Read ArticleSolve Problem | Easy |
| 2 | Delete every alternate node in cyclic linked list | Read ArticleSolve Problem | Medium |
| 3 | Eliminate ≥3 consecutive same chars and restructure | Read ArticleSolve Problem | Medium |
| 4 | Stone-paper-scissor (Permutation Backtracking) | Read ArticleSolve Problem | Medium |
| 5 | Gas Station | Read ArticleSolve Problem | Medium |
| 6 | Generate Parenthesis | Read ArticleSolve Problem | Medium |
| 7 | LCA of a Binary Tree | Read ArticleSolve Problem | Medium |
| 8 | Josephus Problem (O(1) Time) | Read ArticleSolve Problem | Hard |
| 9 | Word Ladder | Read ArticleSolve Problem | Hard |
