| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. Copycat | 385 | 392 | 0:03:16 |
| B. Add Them Up | 357 | 362 | 0:03:13 |
| C. Squared | 356 | 358 | 0:04:37 |
| D. Missing Number | 335 | 340 | 0:06:07 |
| E. Maximum | 293 | 305 | 0:07:43 |
| F. Mixed Fractions | 284 | 286 | 0:11:02 |
| G. Running Average Again | 209 | 235 | 0:17:46 |
| H. Math and Watermelons | 265 | 268 | 0:19:45 |
| I. Is Palindrome | 205 | 212 | 0:21:33 |
| J. Divisors | 261 | 263 | 0:21:42 |
| K. Making Friends | 205 | 214 | 0:26:08 |
| L. Is Anagram | 158 | 165 | 0:20:09 |
| M. Is Prime | 226 | 235 | 0:31:03 |
| N. Fibonacci Numbers | 193 | 201 | 0:13:46 |
| O. Incompatible Crops | 55 | 62 | 1:03:29 |
| P. Pascal's Triangle | 135 | 140 | 0:09:26 |
| Q. Byang's Additions | 102 | 107 | 0:58:54 |
| R. Tidy Bits | 77 | 78 | 0:19:23 |
| S. Decent Arrays | 125 | 144 | 0:29:27 |
| T. Better Passwords | 94 | 104 | 0:28:52 |
| U. Set Union | 64 | 91 | 0:18:16 |
| V. Caesar Cipher | 64 | 76 | 0:23:22 |
| W. Little Subarray Sum | 123 | 124 | 0:56:27 |
| X. ASCII Progress Bar | 77 | 103 | 0:35:51 |
| Y. Proper Leap Years | 165 | 178 | 0:09:54 |
| Z. Neat Brackets | 94 | 114 | 0:28:08 |
