| 0017-letter-combinations-of-a-phone-number |
Backtracking |
Medium |
✅ |
| 0649-dota2-senate |
Queue |
Medium |
✅ |
| 0933-number-of-recent-calls |
Queue |
Easy |
✅ |
| 0215-kth-largest-element-in-an-array |
Heap / Priority Queue |
Medium |
✅ |
| 1448-count-good-nodes-in-binary-tree |
Tree (DFS) |
Medium |
✅ |
| 0199-binary-tree-right-side-view |
Tree (BFS) |
Medium |
✅ |
| 0104-maximum-depth-of-binary-tree |
Tree (DFS) |
Easy |
✅ |
| 0872-leaf-similar-trees |
Tree (DFS) |
Easy |
✅ |
| 0841-keys-and-rooms |
Graph (DFS/BFS) |
Medium |
✅ |
| 1926-nearest-exit-from-entrance-in-maze |
Graph (BFS) |
Medium |
✅ |
| 1456-maximum-number-of-vowels-in-a-substr |
Sliding Window |
Medium |
✅ |
| 0005-longest-palindromic-substring |
DP - On Strings |
Medium |
✅ |
| 0139-word-break |
DP - On Strings |
Medium |
✅ |
| 0063-unique-paths-ii |
DP - StyleMatrix |
Medium |
✅ |
| 0120-triangle |
DP - StyleMatrix |
Medium |
✅ |
| 0064-minimum-path-sum |
DP - StyleMatrix |
Medium |
✅ |
| 0221-maximal-square |
DP - StyleMatrix |
Medium |
✅ |
| 0931-minimum-falling-path-sum |
DP - StyleMatrix |
Medium |
✅ |
| 0062-unique-paths |
DP - StyleMatrix |
Medium |
✅ |
| 0740-delete-and-earn |
DP - Fibonacci Style |
Medium |
✅ |
| 0198-house-robber |
DP - Fibonacci Style |
Medium |
✅ |
| 0746-min-cost-climbing-stairs |
DP - Fibonacci Style |
Easy |
✅ |
| 0509-fibonacci-number |
DP - Fibonacci Style |
Easy |
✅ |
| 1137-n-th-tribonacci-number |
DP - Fibonacci Style |
Easy |
✅ |
| 0027-remove-element |
Two Pointers |
Easy |
✅ |
| 0088-merge-sorted-array |
Two Pointers |
Easy |
✅ |
| 0208-implement-trie-prefix-tree |
Trie |
Medium |
✅ |