| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. Another String Query Problem | 4 | 5 | 0:10:25 |
| B. Help to Be Happy | 14 | 16 | 0:15:03 |
| C. The Story of Two Friends | 20 | 28 | 0:08:51 |
| D. Maximum Sum Segment | 2 | 23 | 0:05:34 |
| E. Power of the Champion | 17 | 23 | 0:21:23 |
| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. Another String Query Problem | 4 | 5 | 0:10:25 |
| B. Help to Be Happy | 14 | 16 | 0:15:03 |
| C. The Story of Two Friends | 20 | 28 | 0:08:51 |
| D. Maximum Sum Segment | 2 | 23 | 0:05:34 |
| E. Power of the Champion | 17 | 23 | 0:21:23 |
