Dev - C++ - Dibujar un cuadrado usando while loop.

#include <iostream>

#include <iomanip>

using namespace std;

int main(){

    int x;

    char ch;

    cout << "Enter a number and a character: ";

    cin >> x >> ch;

    if (x % 2 == 0){

      while()

        {

        }

    }

    if else(x % 2 == 1)

    {

    for(int i = 1; i <= x; ++i)

      {

        for(int j = 1; j <= i; ++j)

          {

            cout << ch;

          }

            cout << endl;

      }

    }

  return 0;

}

Ejemplo: 4                Ejemplo: 3

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#include <iostream>

using namespace std;

void imprimirCuadrado( int n, char c );

void imprimirTriangulo( int n, char c );

int main()

{

    int x;

    char y;

    cout << "\nIntroduzca un numero: ";

    cin >> x;

    cout << "Introduzca un caracter: ";

    cin >> y;

    if( x % 2 == 0 )

        imprimirCuadrado( x, y );

    else

        imprimirTriangulo( x, y );

    return 0;

}

void imprimirCuadrado( int n, char c )

{

    cout << endl;

    // Imprimir borde superior

    int i = 0;

    while( i < n ) {

        cout << c;

        i++;

    }

    cout << endl;

    // Imprimir bordes laterales

    int j = 1;

    int k;

    while( j < n-1 ) {

        k = 0;

        while( k < n ){

            if( k == 0 || k == n-1 )

                cout << c;

            else

                cout << " ";

            k++;

        }

        j++;

        cout << "\n";

    }

    //Imprimir borde inferior

    i = 0;

    while( i < n ) {

        cout << c;

        i++;

    }

    cout << endl;

}

void imprimirTriangulo( int n, char c )

{

    cout << endl;

    // Imprimir el vértice superior

    if (n > 0) {

        for (int k = 1; k <= n-1; k++)

            cout << " ";

        cout << c << "\n";

    }

    // Imprimir los bordes laterales

    for (int k = 2; k <= n-1; k++) {

        for (int j = 1; j <= n-k; j++)

            cout << " ";

        cout << c;

        for (int j = 1; j <= 2*k-3; j++)

            cout << " ";

        cout << c << "\n";

    }

    // Imprimir el borde inferior

    if (n > 1) {

        cout << c;

        for (int k = 1; k <= n-1; k++)

            cout << " " << c;

        cout << "\n";

    }

    cout << endl;

}