摘要：题目链接：https://www.luogu.com.cn/problem/CF580E 1 #include<bits/stdc++.h> 2 #define ull unsigned long long 3 using namespace std; 4 const int N=1000011; 阅读全文

摘要：1 #include<bits/stdc++.h> 2 #define ull unsigned long long 3 using namespace std; 4 const int N=500011,L=2000011; 5 const ull St=233; 6 int T,n,m; 7 u 阅读全文