#include <stdio.h>
  
/* following two lines are prototypes for ex 7&8 answers */
int product( int x, int y );
int divide_em( int a, int b );

main()
{
    int number1 = 10,
        number2 = 5;
    int x, y, z;

    x = product( number1, number2 );
    y = divide_em( number1, number2 );
    z = divide_em( number1, 0 );

     printf( "\nnumber1 is %d and number2 is %d", number1, number2 );
     printf( "\nnumber1 * number2 is %d", x );
     printf( "\nnumber1 / number2 is %d", y );
     printf( "\nnumber1 / 0 is %d\n", z );

     return 0;
}

/* following from exercise 7 */
int product( int x, int y )
{
    return (x * y);
}

/* following from exercise 8 */
int divide_em( int a, int b )
{
    int answer = 0;
    
    if( b == 0 )
        answer = 0;
    else
        answer = a/b;

    return answer;
}