gistfile1.txt

#include <iostream>
using namespace std;

int main() {
    int n;
    cout << "Enter size: ";
    cin >> n;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (i == n / 2 || j == n / 2) {
                cout << "1 ";
            } else {
                cout << "0 ";
            }
        }
        cout << endl;
    }

    return 0;
}