摘要: A https://atcoder.jp/contests/abc177/tasks/abc177_c?lang=en #include <bits/stdc++.h> using namespace std; const int P = 1000000007; int main() { ios:: 阅读全文
posted @ 2021-01-24 21:53 19992147 阅读(84) 评论(0) 推荐(0) 编辑