| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| nwr | Zadanie Najdłuższy wspólny rosnący | proserwy 2010 | 60 | 46% | 79 |
| naj | Task Divine Divisor | oi 17 e1 | 104 | 41% | 59 |
| naj | Task The Shortest Period [B] | pa 2011 r6 b | 6 | 50% | 53 |
| naj | Task The Lightest Language | oi 5 e3 d1 | 37 | 64% | 75 |
| nwd | Zadanie Największy wspólny dzielnik | 575 | 27% | 40 | |
| nao | Zadanie Na odwrót | Very easy | 4044 | 92% | 93 |
| nap | Zadanie Na przemian | 758 | 85% | 87 | |
| nap | Zadanie Na przemian | 2722 | 87% | 92 | |
| nar | Zadanie Narciarze | pa 2002 r5 | 16 | 31% | 43 |
| nar | Task Skiers | oi 7 e1 | 41 | 75% | 88 |
| nar | Task Skiers | oi 9 e3 d1 | 39 | 58% | 73 |
| nas | Zadanie Naszyjniki | oig 3 e1 | 211 | 66% | 73 |
| naw | Task Brackets | ontak 2010 | 0 | ||
| naw | Zadanie Nawiasy | pa 2002 r6 | 5 | 40% | 64 |
| naw | Zadanie Nawiasy | oig 5 e3 d0 | 311 | 45% | 56 |
| naw | Task Brackets | oi 9 e3 d2 | 84 | 55% | 60 |
| naw | Zadanie Nawiasy | pa 2003 r4 | 93 | 53% | 77 |
| naw | Task Brackets [B] | pa 2007 r6 b | 14 | 28% | 39 |
| nie | Zadanie Nieatakujące się skoczki | oi 3 e3 d2 | 27 | 77% | 80 |
| nie | Task Near | pa 2008 final-trial | 17 | 52% | 66 |