| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| kon | Task Programming Contest | pa 2009 final | 9 | 33% | 48 |
| kon | Zadanie Konspiracja | oi 18 e1 | 58 | 70% | 82 |
| kop | Zadanie Kopalnia | ontak 2013 | 3 | 33% | 48 |
| kop | Task Goldmine | oi 8 e3 d2 | 272 | 78% | 89 |
| kor | Task Beads | oi 17 e1 | 414 | 76% | 86 |
| kor | Zadanie Korekcja błędów | pa 2002-2 r4 | 4 | 100% | 100 |
| kor | Zadanie Korniki [B] | pa 2012 r6 b | 37 | 18% | 34 |
| kos | Zadanie Kości | oi 12 e2 d2 | 107 | 42% | 66 |
| kos | Task Dice | ontak 2007 | 8 | 62% | 65 |
| kos | Zadanie Kosmiczny pościg | oig 4 e3 | 283 | 57% | 74 |
| kos | Zadanie Kostka | ontak 2011 | 1 | 0% | 0 |
| kos | Task Dice [A] | pa 2009 r2 a | 26 | 61% | 65 |
| kst | Zadanie Kostki domina | proserwy 2010 | 300 | 53% | 77 |
| kos | Zadanie Koszykarz | proserwy 2010 | 4206 | 82% | 90 |
| kos | Task Basketball player | math Very easy | 186 | 0% | 0 |
| kot | Task A Cat on a Keyboard | pa 2008 trial | 170 | 78% | 84 |
| koz | Task The Goat [A] | pa 2010 r5 a | 6 | 83% | 83 |
| kra | Zadanie Krany | ilocamp 2011 | 287 | 67% | 77 |
| kra | Zadanie Kratki | proserwy 2010 | 295 | 62% | 76 |
| kra | Task The Disks | oi 13 e1 | 1673 | 77% | 84 |