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| ID | Nazwa | Znaczniki | Zgłosiło | %Rozwiązało | Średnio |
|---|---|---|---|---|---|
| compare | compare | 1 | 100% | 100 | |
| cw1 | Co na wejściu? | 376 | 65% | 93 | |
| coa | Concatenation of Arrays / Codeforces / C | 6 | 50% | 63 | |
| connect | connect | 1 | 0% | 45 | |
| connect | connect | 1 | 100% | 100 | |
| cou | 1D Coulomb | 15 | 100% | 100 | |
| coh | Counting Haybales / USACO Silver | 73 | 91% | 93 | |
| cow1 | Czy Or jest większy 1 | 10 | 100% | 100 | |
| cbp | Cow Beauty Pageant (Silver Level) | 5 | 80% | 87 | |
| ccl | Cow College / USACO Bronze | 120 | 86% | 91 | |
| ct2 | Cowntact Tracing 2 / USACO Bronze | 9 | 44% | 58 | |
| ranom | C. Ranom Numbers | 4 | 100% | 100 | |
| rte | C. Remove the Ends / Codeforces | 9 | 88% | 92 | |
| ctb | Czy tu już byłem? | 0 | |||
| ctb | Czy tu już byłem? | 8 | 25% | 37 | |
| ctf | Closing the farm / USACO Silver | 0 | |||
| ctsd | Czy to samo drzewo? | 82 | 91% | 92 | |
| cuk | Cukierki | 14 | 100% | 100 | |
| cuk | Cukiernia | 16 | 93% | 93 | |
| cuk | Cukierki | oig e1 12 | 96 | 68% | 84 |