| ID | Nazwa | Znaczniki | Zgłosiło | %Rozwiązało | Średnio |
|---|---|---|---|---|---|
| buzka | buzka | 1836 | 95% | 95 | |
| bdk | Byle daleko | 7 | 71% | 83 | |
| C | Cenowe Combo | 0 | |||
| C | Cierpliwe krowy | 1 | 0% | 12 | |
| cpp | C++ | 219 | 96% | 98 | |
| atp | C1. Adjust The Presentation (Easy Version) | 6 | 83% | 90 | |
| sft | C1. Skibidus and Fanum Tax (easy version) / Codeforces / Div 4 | 12 | 66% | 74 | |
| cakes | Cakes | 24 | 25% | 77 | |
| cam | Camel | ejoi 2017 d2 | 24 | 45% | 47 |
| ccf | Candy Cane Feast / USACO Bronze | 7 | 71% | 93 | |
| aa1 | C. Anya and 1100 | 6 | 100% | 100 | |
| cap | Wielkie i małe literki | 44 | 2% | 37 | |
| cap | CAPS LOCK | Łatwe | 204 | 45% | 54 |
| car | Carrots for Rabbits | 5 | 100% | 100 | |
| car | Carcassonne [B] | pa r5 b 2017 | 6 | 33% | 46 |
| carp | Carpet | 8 | 87% | 87 | |
| car | Car Park | ceoi 2018 d0 | 43 | 69% | 76 |
| cat | Catshock | 0 | |||
| cat | cat | 1 | 0% | 0 | |
| cat | Cat Exercise | 8 | 100% | 100 |