| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. Palindromic Number | 43 | 45 | 0:02:32 |
| B. The Optimus Three | 44 | 45 | 0:04:17 |
| C. Exclusive-OR | 20 | 26 | 0:07:45 |
| D. Retake | 19 | 29 | 0:20:34 |
| E. Carrier | 6 | 12 | 1:09:57 |
| F. Find the Circle | 14 | 34 | 0:47:41 |
| G. Interesting Triplets (Easy) | 2 | 5 | 2:41:01 |
| H. Interesting Triplets (Hard) | 0 | 0 | Unsolved |
| I. Reform A Substring | 0 | 4 | Unsolved |
| J. Relocation Game | 0 | 3 | Unsolved |
| K. Mischievous Meme Maker | 12 | 26 | 1:16:44 |
| L. Bucket | 3 | 7 | 2:45:54 |
