摘要：
https://www.acwing.com/problem/content/4284/ #include <iostream> #include <cstring> #include <algorithm> using namespace std; typedef long long LL; co 阅读全文
摘要：
https://www.acwing.com/problem/content/description/4275/ 优质题解：https://www.acwing.com/solution/content/89003/ #include <iostream> #include <vector> #in 阅读全文