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| ID | Nazwa | Znaczniki | Zgłosiło | %Rozwiązało | Średnio |
|---|---|---|---|---|---|
| carp | Carpet | 7 | 85% | 85 | |
| car | Car Park | ceoi 2018 d0 | 43 | 69% | 76 |
| cat | Cat Exercise | 5 | 100% | 100 | |
| cat | cat | 0 | |||
| cbur | Bursztyn | 22 | 68% | 78 | |
| C | Cenowe Combo | segtree sweep amppz Bardzo trudne | 7 | 42% | 50 |
| cho | Choinka | 31 | 6% | 6 | |
| cho | Chochliki | 3 | 0% | 0 | |
| cho | Chochliki | 1 | 0% | 0 | |
| cho | Chochlik | pa final 2018 | 26 | 84% | 84 |
| lin | Chodzenie po linie [B] | pa b r5 2022 | 1 | 0% | 20 |
| a5g | Choina z cyferek | 830 | 96% | 97 | |
| cho | Choinka | 3 | 66% | 100 | |
| choinka1 | Choinka 1 | Petla Łatwe | 246 | 83% | 84 |
| choinka2 | Choinka 2 | Łatwe | 137 | 72% | 73 |
| choinka3 | Choinka 3 | 58 | 94% | 94 | |
| a5h | Choinka z cyferek | 844 | 94% | 97 | |
| cia | Ciąg rosnący - II etap OIJ 18 2024 | 15 | 20% | 24 | |
| cia | Ciąg | 189 | 91% | 92 | |
| cia | Ciąg binarny | oi 31 e2 d2 | 33 | 27% | 57 |