| # | ID | Name | Difficulty | Solver |
|---|---|---|---|---|
| 1 | abc284_f | I. ABCBAC | 1575 | 4062 |
| 2 | abc331_f | I. Palindrome Query | 1666 | 3272 |
| 3 | abc377_g | G. Edit to Match | 1782 | 1994 |
| 4 | agc047_b | B. First Second | 1871 | 1703 |
| 5 | abc150_f | F. Xor Shift | 2281 | 1776 |
| 6 | abc135_f | F. Strings of Eternity | 2388 | 1446 |
| 7 | arc055_c | C. ABCAC | 2392 | 528 |
| 8 | arc099_d | F. Eating Symbols Hard | 3039 | 671 |
| 9 | joi2008ho_b | B. 共通部分文字列 | null | 812 |
| 10 | typical90_au | 047. Monochromatic Diagonal（★7） | null | 806 |