摘要： https://codeforces.com/gym/253910/problem/F F. Kyoya and Colored Balls time limit per test 2 seconds memory limit per test 256 megabytes input standar 阅读全文

摘要： https://codeforces.com/gym/253910/problem/D D. Haar Features time limit per test 1 second memory limit per test 256 megabytes input standard input out 阅读全文