笛卡尔积简单输出

#include<iostream>
using namespace std;

int main()
{
int a[100],b[100],c[2][100];
int x,y,k;
cin >> x;
for(int i = 0;i < x;i++)
cin >> a[i];

cin >> y;
for(int i = 0;i < y;i++)
cin >> b[i];

for(int i = 0;i < x;i++)
{
for(int j = 0;j < y;j++)
{
k = i * x + j;
c[0][k] = a[i];
c[1][k] = b[j];
cout << "(" << c[0][k] << "," << c[1][k] << ") ";
}
cout << endl;
}
return 0;
}