题解

#include<bits/stdc++.h>
using namespace std;
int main(){
    int m,n;
    cin >>m>>n;
    int a[m][n] = {0};
    for(int i = 0;i<m;i++){
        for(int j = 0;j<n;j++){
            cin >>a[i][j];
        }
    }
    int a1[m][n] = {0};
    for(int i = 0;i<m;i++){
        for(int j = 0;j<n;j++){
            cin >>a1[i][j];
        }
    }
    int tmp = 0;
    for(int i = 0;i<m;i++){
        for(int j = 0;j<n;j++){
            if(a[i][j] == a1[i][j]){
                tmp++;
            }
        }
    }
    float tmp1 = tmp;
    float fff = m * n;
    float cnp = tmp1 / fff * 100;
    printf("%.2lf",cnp);
}