| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| wys | Task Isles in a Triangular Grid | oi 1 e2 d2 | 20 | 80% | 84 |
| wys | Task Island | oi 8 e2 d1 | 8 | 50% | 50 |
| wys | Task Island | oi 9 e1 | 336 | 89% | 94 |
| xor | Task XOR Gates | oi 4 e1 | 46 | 63% | 74 |
| zab | Task Frogs | oi 13 e1 | 46 | 56% | 71 |
| zab | Task Frog | oi 17 e3 d1 | 163 | 74% | 85 |
| zaj | Zająknięcia | oi 23 e2 d1 | 559 | 75% | 79 |
| zal | Task Freight | oi 21 e3 d2 | 113 | 67% | 77 |
| zam | Task Castle | oi 9 e1 | 135 | 67% | 78 |
| zam | Zamek cykliczny | oi 32 e1 | 151 | 56% | 63 |
| zam | Zadanie Zamek | oi 3 e1 | 15 | 26% | 32 |
| zam | Zamek | oi 24 e2 d2 | 296 | 42% | 67 |
| zap | Zapobiegliwy student | oi e1 31 | 134 | 68% | 71 |
| zap | Zapiekanki | oi 24 e3 d1 | 115 | 52% | 78 |
| zap | Task Queries | oi 14 e1 | 55 | 25% | 50 |
| zaw | Task The Competition | oi 11 e1 | 150 | 60% | 78 |
| zaw | Zawody sportowe | oi 24 e2 d0 | 269 | 77% | 84 |
| zbo | Zboże | oi 30 e1 | 135 | 56% | 62 |
| zdj | Zdjęcia krasnali | oi 28 d1 e2 | 351 | 74% | 78 |
| zer | Zera i jedynki | oi 32 e3 d0 | 21 | 95% | 95 |