PedF UK - OKB1319205 Ukol1a

#include <iostream>

 /**
  * Draws ASCII art square of given size with given char.
  *
  * @param size Size of square to be drawn
  * @param c Char to be used to draw a square..
  */

void drawSquare ( int size, char c )
 {
    for ( int i = 0; i < size; ++i )
        for ( int j = 0; j < size; ++j )
            std::cout << c << ( j == size-1 ? "\n" : " " );
 }

 /**
  * Program capable of drawing simple ASCII square.
  *
  * @return Returns 1 if wrong input is detected, 0 if everything ok.
  * @author Michael Hartman [email protected]
  */

int main ( int argc, char ** argv )
 {
    std::cout << "Enter number: ";
    int num;
    if ( ! ( std::cin >> num ) || num < 0 )
     {
        std::cerr << "Bad input!" << std::endl;
        return 1;
     }

    drawSquare ( num, '*' );
    return 0;
 }