| 7012 | BZOJ3012：[Usaco2012 Dec]First! | 0 | 0 | 0.000% |
| 7317 | BZOJ3317：[Swerc2008]First Knight | 0 | 0 | 0.000% |
| 102150 | [AtCoder]ABC215 A - Your First Judge | 0 | 2 | 0.000% |
| 102290 | [AtCoder]ABC229 A - First Grid | 0 | 0 | 0.000% |
| 102831 | [Atcoder]ABC283 B - First Query Problem | 0 | 1 | 0.000% |
| 103040 | [Atcoder]ABC304 A - First Player | 0 | 6 | 0.000% |
| 103110 | [Atcoder]ABC311 A - First ABC | 0 | 7 | 0.000% |
| 103220 | [Atcoder]ABC322 A - First ABC 2 | 0 | 8 | 0.000% |
| 300282 | CF54C. First Digit Law | 0 | 0 | 0.000% |
| 302979 | CF580A. Kefa and First Steps | 0 | 0 | 0.000% |
| 305211 | CF991A. If at first you don't succeed... | 0 | 0 | 0.000% |
| 309679 | CF1717F. Madoka and The First Session | 0 | 0 | 0.000% |
| 310984 | CF1917B. Erase First or Second Letter | 0 | 0 | 0.000% |
| 311336 | CF1971A. My First Sorting Problem | 0 | 6 | 0.000% |
| 401346 | GYM100405 F First Date | 0 | 0 | 0.000% |
| 401400 | GYM100436 A Black moves first and... | 0 | 0 | 0.000% |
| 401602 | GYM100499 A Cool number | 0 | 0 | 0.000% |
| 401603 | GYM100499 B K smallest numbers | 0 | 0 | 0.000% |
| 401604 | GYM100499 C Grid city | 0 | 0 | 0.000% |
| 401605 | GYM100499 D Pairwise Coprime Set | 0 | 0 | 0.000% |
| 401606 | GYM100499 E Binary Search Tree | 0 | 0 | 0.000% |
| 401607 | GYM100499 F Tree again | 0 | 0 | 0.000% |
| 401608 | GYM100499 G Visual Illusion | 0 | 0 | 0.000% |
| 401609 | GYM100499 H CCTV | 0 | 0 | 0.000% |
| 401610 | GYM100499 I Fraction | 0 | 0 | 0.000% |
| 401611 | GYM100499 J Healthy Recipes | 0 | 0 | 0.000% |
| 402330 | GYM100729 E Please, go first | 0 | 0 | 0.000% |
| 403001 | GYM100963 C First Experience | 0 | 0 | 0.000% |
| 404829 | GYM101649 J Jenny's First Exams | 0 | 0 | 0.000% |
| 405004 | GYM101736 D Dessert First Strategy | 0 | 0 | 0.000% |
| 405133 | GYM101804 F First Day | 0 | 0 | 0.000% |
| 405554 | GYM101992 B The first task | 0 | 0 | 0.000% |
| 405672 | GYM102032 A Innohorse | 0 | 0 | 0.000% |
| 406139 | GYM102277 H First Last Sorting | 0 | 0 | 0.000% |
| 406727 | GYM102511 G First of Her Name | 0 | 0 | 0.000% |
| 407565 | GYM102830 A First Problem | 0 | 0 | 0.000% |
| 408114 | GYM102992 B Baby's First Suffix Array Problem | 0 | 0 | 0.000% |
| 409037 | GYM103426 A Bananas Packing | 0 | 0 | 0.000% |
| 409038 | GYM103426 B Permutations | 0 | 0 | 0.000% |
| 409039 | GYM103426 C Equation | 0 | 0 | 0.000% |
| 409040 | GYM103426 D Fantastic Three | 0 | 0 | 0.000% |
| 410346 | GYM104011 F First to Solve | 0 | 0 | 0.000% |
| 410562 | GYM104052 A Sheet Metal | 0 | 0 | 0.000% |
| 410563 | GYM104052 B Lunchtime Fruits | 0 | 0 | 0.000% |
| 410564 | GYM104052 C Sliding Dominoes | 0 | 0 | 0.000% |
| 410565 | GYM104052 D Lost in Translation | 0 | 0 | 0.000% |
| 410566 | GYM104052 E Summer School | 0 | 0 | 0.000% |