3. Two Pointers
| Question | Time |
|---|---|
| 42. Trapping Rain Water | |
| 407. Trapping Rain Water II |
5. Math
5.1. Modulo
| Question | Time |
|---|---|
| 2845. Count of Interesting Subarrays | |
5.2. Digits
| Question | Time |
|---|---|
| 556. Next Greater Element III | |
| 7. Reverse Integer |
5.3. Permutation
6. Offline
| Question | Time |
|---|---|
| 2940. Find Building Where Alice and Bob Can Meet |
7. Binary Search
| Question | Time |
|---|---|
| 2071. Maximum Number of Tasks You Can Assign |
9. TODO Backtracking
10. Simulation
| Question | Time |
|---|---|
| 838. Push Dominoes |
11. Tricks
| Question | Time | Discussion |
|---|---|---|
| 1007. Minimum Domino Rotations For Equal Row | link | |
12. TODO Graph
12.1. DFS
12.2. TODO shortest path
12.3. Connected Components
12.4. TODO Topological Sort
12.5. TODO Tree
12.6. Cycle
13. Dynamic Programming
| Question | Time | Topics Covered |
|---|---|---|
| 3578. Count Partitions With Max-Min Difference at Most K | DP, Mono Stack, Sliding Window, Modular |
13.1. State Machine + DP
15. Computer Network
| Question | Time |
|---|---|
| Check if two ips are in the same subnet |