Tasks
| Task Name | Time Limit | Memory Limit | |
|---|---|---|---|
| A | Buy a Pen | 2 sec | 1024 MiB |
| B | Right Triangle | 2 sec | 1024 MiB |
| C | Sum = 0 | 2 sec | 1024 MiB |
| D | Shortest Path 3 | 2 sec | 1024 MiB |
| E | Count Arithmetic Subsequences | 2 sec | 1024 MiB |
| F | Perfect Matching on a Tree | 2 sec | 1024 MiB |
| G | Count Substring Query | 3 sec | 1024 MiB |