Nested loop

Hi and salam to all ! I would like to share with you guys about my programme regarding to the nested loop :

#include <stdio.h>

#include <stdlib.h>

int main( void )

{

    int size;

    int row;

    int star;

    printf( "Enter size of triangle:\n " );

    scanf( "%d", &size );

    row = 1;

    while( row <= size )

    {

        star = 1;

        while( star <= row )

        {

            printf( "*" );

            star++;

        }

        printf( "\n" );

        row++;

    }

    system( "PAUSE" );

    return 0;

}