First positive element in cow

#include<iostream>

using namespace std;


int n;

}
int main()
{
    cin >> n;
    int** a = new int* [n];
    for (int i = 0; i < n; ++i)
        a[i] = new int[n];
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < n; ++j)
            cin >> a[i][j];
   int* b = new int[n];
   int k = 0;
   for (int j = 0; j < n; ++j)
    for (int i = 0; i < n; ++i)
        if (a[i][j] > 0)
            {
                b[k++] = i + 1;
                break;
            }
    for (int i = 0; i < n; ++i)
        cout << b[i] << ' ';
}