polski
| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| kin | Zadanie Kinoman | oi 22 e1 | 486 | 69% | 78 |
| klo | Klocki | oi 14 e3 d2 | 117 | 64% | 70 |
| klo | Task Bricks | oi 21 e1 | 103 | 33% | 62 |
| klo | Task Building blocks | oi 15 e1 | 154 | 61% | 67 |
| klo | Task Blocks | oi 17 e2 d1 | 277 | 60% | 74 |
| klu | Klubowicze 2 | oi 26 e1 | 248 | 64% | 70 |
| klu | Klubowicze | oi 23 e3 d2 | 116 | 38% | 52 |
| kod | Task Code | oi 7 e2 d2 | 57 | 89% | 93 |
| kod | Task Coding of Permutations | oi 2 e3 d0 | 218 | 74% | 84 |
| kod | Task The Code | oi 16 e3 d2 | 6 | 33% | 58 |
| kol | Kolej | oi 17 e1 | 231 | 19% | 25 |
| kol | Kolorowy wąż | oi 30 e1 | 170 | 70% | 74 |
| kol | Task Railway | oi 14 e3 d0 | 21 | 33% | 51 |
| kol | Kolacje | oi 26 e2 d1 | 387 | 37% | 64 |
| kol | Kolekcjoner Bajtemonów | oi 22 e3 d2 | 278 | 86% | 92 |
| kol | Kolekcjoner Bajtemonów 2 | oi d0 e3 28 | 84 | 57% | 74 |
| kol | Task Railways | oi 9 e1 | 725 | 78% | 88 |
| kom | Task Byteasar the Travelling Salesman | oi 9 e1 | 652 | 86% | 92 |
| kom | Komunikacja międzyplanetarna | oi d2 e3 28 | 63 | 4% | 8 |
| kom | Kompresja drzew binarnych | oi ioi-elem d2 27 | 29 | 31% | 37 |