题解

#include<iostream>
using namespace std;
int main(){
int n,m;
cin >> n >> m;
int a[n][m],b[n][m];
for(int i = 0;i < n;i ++){//输入数组
for(int j = 0;j < m;j ++){
cin >> a[i][j];
}
}
for(int i = 0;i < n;i ++){
for(int j = 0;j < m;j ++){
cin >> b[i][j];
cout << a[i][j] + b[i][j] << " ";//将两个矩阵加起来，同时输出
}
cout << endl;
}
return 0;
}