Diamond pattren program in C++

#include <iostream>
using namespace std;

int main() {
    int n, c, k, space = 1;
    cout << "Enter number of rows (odd number): ";
    cin >> n;
    space = n - 1;
    for (k = 1; k <= n; k++) {
        for (c = 1; c <= space; c++)
            cout << " ";
        space--;
        for (c = 1; c <= 2 * k - 1; c++)
            cout << "*";
        cout << "\n";
    }
    space = 1;
    for (k = 1; k <= n - 1; k++) {
        for (c = 1; c <= space; c++)
            cout << " ";
        space++;
        for (c = 1 ; c <= 2 * (n - k) - 1; c++)
            cout << "*";
        cout << "\n";
    }
    return 0;
}