| Type | Number | Done |
|---|---|---|
| Array & HashTable | 7 | 7 |
| Two pointers | 3 | 3 |
| Sliding Window | 4 | 3 |
| Stack | 1 | 1 |
| Binary Search | 2 | 2 |
| Linked List | 6 | 5 |
| Tree | 11 | 9 |
| Tries | 3 | 2 |
| Heap / Priority Queue | 1 | |
| BackTracking | 2 | 2 |
| Graph | 6 | 1 |
| Advanced Graphs | 1 | |
| 1-D Dynamic Programming | 10 | 1 |
| 2-D Dynamic Programming | 2 | |
| Greedy | 2 | |
| Intervals | 5 | |
| Math & Geometry | 3 | 1 |
| Bit Manipulation | 5 | 5 |
| Type | Done |
|---|---|
| Array & HashTable | 1 |
| Two pointers | |
| Sliding Window | |
| Stack | |
| Binary Search | |
| Linked List | |
| Tree | 1 |
| Tries | |
| Heap / Priority Queue | |
| BackTracking | |
| Graph | 1 |
| Advanced Graphs | |
| 1-D Dynamic Programming | |
| 2-D Dynamic Programming | |
| Greedy | |
| Intervals | |
| Math & Geometry | 1 |
| Bit Manipulation |