？？？

我想整个自动机。

#include<bits/stdc++.h>
using namespace std;
const int maxn = 5e4 + 10;
class AM {
public:
	pair<int, int> e[5];
	pair<int, int>& operator[](const size_t& __n) {
		return e[__n];
	} 
	const pair<int, int>& operator[](const size_t& __n) const {
		return e[__n];
	} 
	AM& operator*=(const AM& __rhs) {
		for(int i = 0; i < 5; i++) {
			e[i].second += __rhs[e[i].first].second;
			e[i].first = __rhs[e[i].first].first;
		}
		return *this;
	}
	AM operator * (const AM& __rhs) {
		return AM(*this) *= __rhs;
	}
}; 
#define _e 0
#define _0 1
#define _00 2
#define _01 3
#define _001 4 
#define MP make_pair
const AM A[2] = {
	{MP(_0, -1), MP(_00, -1), MP(_0, 1), MP(_0, -1), MP(_00, -1)},
	{MP(_e, 1), MP(_01, 1), MP(_001, 1), MP(_e, 1), MP(_e, 1)}
};
int main() {
	cerr << A[0][1].first << ' ' << A[1][2].second;
}

这样为啥是对的：

const AM A[2] = { {MP(_0, -1), MP(_00, -1), MP(_0, 1), MP(_0, -1), MP(_00, -1)}, {MP(_e, 1), MP(_01, 1), MP(_001, 1), MP(_e, 1), MP(_e, 1)} };