Example: C++ Program to print Hollow Square with Diagonal

C
C++
C#
Java
Python
PHP
// C++ Program to print Hollow Square with Diagonal
#include <bits/stdc++.h>
using namespace std;

int main() {
    int x = 0, y = 0;
    unsigned int sS = 0;

    cout << "-----Enter the side of a square-----\n";
    cin >> sS;

    cout << endl;
    for (x = 1; x <= sS; ++x) {
        for (y = 1; y <= sS; ++y) {
            // It will check boundary conditions
            // It will check diagonal and secondary diagonal conditions
            if ((x == 1) || (x == sS) || (y == 1) || (y == sS) || (x == y) || (y == (sS - x + 1)))
                cout << "*";
            else
                cout << " ";
        }

        // It will print the new line
        cout << endl;
    }
    return 0;
}