English
| ID | Nazwa | Znaczniki | Zgłosiło | %Rozwiązało | Średnio |
|---|---|---|---|---|---|
| r2a | U S A | 870 | 95% | 96 | |
| r2a | U S A | 90 | 95% | 96 | |
| ust | Ustaw(a) | segtree Łatwe | 20 | 85% | 92 |
| ubt | Ustaw Bit! | 114 | 94% | 97 | |
| usu | Usuwanie | oi 32 e1 | 211 | 90% | 91 |
| abba | Usuwanie ABB'Y | 20 | 75% | 92 | |
| r2a | Usuwanie bugów | 610 | 72% | 86 | |
| usu | Usuwanka | oig 14 e2 | 385 | 54% | 63 |
| usz | Uszkodzona klawiatura | 8 | 87% | 91 | |
| usz | Uszkodzona klawiatura | 3 | 100% | 100 | |
| V | Promieniowanie UV 2 | 0 | |||
| vaf | Vanya and Fence/ Codeforces / A | 98 | 98% | 99 | |
| vec | Vector | 79 | 98% | 98 | |
| vlad | Vlad | 6 | 100% | 100 | |
| vlad_x | F. Vlad and Avoiding X | 3 | 100% | 100 | |
| W | Wciąż bez sensu | 25 | 96% | 98 | |
| wag | Waga | 28 | 21% | 57 | |
| wag | Waga | pa final 2016 | 4 | 100% | 100 |
| wag | Waga medianowa | 7 | 85% | 92 | |
| wag | Wagony | oi 30 e2 d1 | 228 | 69% | 79 |