| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. The Greatest Show on Earth | 187 | 187 | 0:00:14 |
| B. Negentropy | 171 | 182 | 0:00:28 |
| C. Class Representative | 101 | 183 | 0:08:11 |
| D. An Oddd Reaction | 141 | 162 | 0:04:12 |
| E. QuickBus Service (Easy Version) | 53 | 134 | 0:21:20 |
| F. Yet Another Sorting Algorithm | 20 | 39 | 0:30:42 |
| G. Straightforward Problem | 4 | 152 | 1:26:12 |
| H. Tile the Wall | 4 | 86 | 2:56:53 |
| I. Out of the Universe | 0 | 57 | 14d 4h |
| J. Factorization - 1 | 0 | 74 | 14d 3h |
