now_ing的博客

ac自动机: #include<bits/stdc++.h>using namespace std;#define REP(i,a,b) for(int i = a; i <= b; ++i) #define FOR(i,a,b) for(int i = a; i < b; ++i) #define mem(a,b) memset(a,b,sizeof(a)) #define MP make_pai