🟢 Easy
🔵 Medium
🔴 Hard
⚫️ Very Hard
| S.No | Question | Difficulty | Category | Approach |
|---|---|---|---|---|
| 1 | Two Number Sum | 🟢 | Arrays | Hash Table, Two Pointers |
| 2 | Validate Subsequence | 🟢 | Arrays | Two Pointers |
| 3 | Tournament Winner | 🟢 | Arrays | |
| 4 | Sorted Squared Array | 🟢 | Arrays | |
| 5 | NonConstructible Change | 🟢 | Arrays | |
| 6 | Node Depths | 🟢 | Binary Tree | |
| 7 | Find Closest Value In Bst | 🟢 | Binary Search Tree | |
| 8 | Branch Sums | 🟢 | Binary Tree | |
| 9 | Minimum Waiting Time | 🟢 | Arrays | PrefixSum |
| S.No | Question | Difficulty | Category | Approach |
|---|---|---|---|---|
| 1 | Three Sum | 🔵 | Arrays | |
| 2 | Spiral Traverse | 🔵 | Arrays | |
| 3 | Smallest Difference | 🔵 | Arrays | |
| 4 | Move Element To End | 🔵 | Arrays | |
| 5 | Monotonic Array | 🔵 | Arrays | |
| 6 | Merge Overlapping Intervals | 🔵 | Arrays | |
| 7 | Longest Peak | 🔵 | Arrays | |
| 8 | First Duplicate Value | 🔵 | Arrays | |
| 9 | ArrayOfProducts | 🔵 | Arrays |