其实不用二维数组

#include <iostream>
using namespace std;
int main (){
int a,b;
cin >> a >> b;
for (int i = 1; i <= a; i++){
for (int j = 1; j <= b; j++){
int f;
cin >> f;
cout << f << ' ';
}
cout << endl;
}
return 0;
}
其实可以不用二维数组