| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| zag | Task Riddle [A] | pa 2010 r6 a | 19 | 15% | 44 |
| zag | Zadanie Żaglówka | ontak 2008 | 5 | 20% | 50 |
| zaj | Zadanie Zając | oig 4 e2 d0 | 384 | 73% | 88 |
| zaj | Task Squared Words [B] | pa 2010 r3 b | 65 | 72% | 77 |
| zak | Zadanie Zakład | ilocamp 2011 | 273 | 68% | 81 |
| zak | Task Turns [A] | pa 2008 r4 a | 18 | 50% | 68 |
| zal | Task Freight | oi 21 e3 d2 | 109 | 67% | 78 |
| zam | Task Castle | oi 9 e1 | 133 | 66% | 78 |
| zam | Zadanie Zamek | oi 3 e1 | 15 | 26% | 32 |
| zam | Zadanie Zamieć | ontak 2013 | 4 | 25% | 37 |
| zap | Zadanie Zapałki | oig 5 e1 | 761 | 57% | 64 |
| zap | Zadanie Zapałki | ilocamp 2011 | 329 | 71% | 79 |
| zap | Task Queries | oi 14 e1 | 53 | 24% | 49 |
| zar | Zadanie Żarłacz bitowy | ontak 2007 | 16 | 87% | 87 |
| zar | Zadanie Żarówki | pa 2014 final | 47 | 53% | 64 |
| zar | Zadanie Żarówki | segtree Medium | 1393 | 84% | 93 |
| hir | Task Hiring | 5 | 60% | 98 | |
| zaw | Task The Competition | oi 11 e1 | 148 | 60% | 77 |
| zbi | Zadanie Zbiór | ilocamp 2011 | 386 | 54% | 74 |
| zbi | Zadanie Zbiory | ontak 2008 | 3 | 66% | 66 |