浅笑~如夏

题目最小表示法，模板。果然权限号板子多啊。背过吧2333#include<bits/stdc++.h> #define N 2000000 using namespace std; char a[N+1],b[N+1]; char c[N+1],d[N+1]; int n,m1,m2; inline int get_M(char *tmp,int len) { int i=0,j=1,k=0