Codeforces Round #309 (Div. 2) C. Kyoya and Colored Balls Home » 编程开发 » Codeforces Round #309 (Div. 2) C. Kyoya and Colored Balls Note In the first sample, we have 2 balls of color 1, 2 … 阅读更多
Codeforces Round #309 (Div. 1) B. Kyoya and Permutation(数学 Home » 编程开发 » Codeforces Round #309 (Div. 1) B. Kyoya and Permutation(数学 B. Kyoya and Permutation time limit per test 2 seconds … 阅读更多