| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. Help Ribo | 28 | 44 | 0:07:55 |
| B. How Many Ways Again | 94 | 107 | 0:02:42 |
| C. Horrible Queries | 39 | 53 | 0:11:48 |
| D. Matchstick Man | 23 | 27 | 0:26:04 |
| E. Playing With Numbers | 6 | 12 | 2:07:53 |
| F. Game of Sticks | 54 | 57 | 0:04:21 |
| G. Bubble Shooter | 40 | 44 | 0:22:26 |
| H. Functions Are Beautiful | 29 | 31 | 0:20:35 |
| I. A Weird Dragon | 12 | 14 | 0:06:51 |
