| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| zlz | Złoża złota | 24 | 25% | 49 | |
| zlt | Zamień litery | 61 | 90% | 96 | |
| zlo | Złośliwiec | oig 20 e2 d0 | 58 | 98% | 98 |
| zlo | Janek i Złote Łuki | 4 | 75% | 83 | |
| zlo | Leniwi Złodzieje | twoptrs mp 2022 r6 | 614 | 86% | 87 |
| zli | Zadanie Zliczacz liter | oig 1 e1 | 1726 | 89% | 91 |
| zli | Task Enumeration of Road Network Plans | pa 2008 final | 6 | 66% | 74 |
| zli | Task Enumeration of Road Network Plans | 13 | 76% | 88 | |
| zli | Zadanie Zliczanie | 451 | 68% | 77 | |
| zli | Zadanie Zliczacz liter | 44 | 90% | 94 | |
| zkp | Zadanie Zmaksymalizowany podzbiór | ilocamp 2011 | 28 | 78% | 91 |
| zkm | Zmiany klimatyczne | 50 | 10% | 48 | |
| zkl | Zepsuta klawiatura | oig school 20 e1 | 141 | 68% | 77 |
| zk2 | Ocena z kartkówki | 0 | |||
| zja | Zjazd obieżyświatów | oi 26 e3 d1 | 310 | 63% | 77 |
| zim | Zadanie Zimne piwnice | ontak 2013 | 5 | 80% | 80 |
| zim | Zadanie Zima [B] | pa 2012 r5 b | 58 | 55% | 62 |
| zie | Zadanie Ziemniaki | 641 | 87% | 87 | |
| zie | Task Potato [B] | 7 | 71% | 72 | |
| zie | Task Potato [B] | pa 2008 r6 b | 19 | 84% | 88 |