Given two integers, output their sum, difference and product.
PHP:
<?
// two integers, these can be any numbers
// the numbers are randomly generated to add some variety
// mt_rand() is a faster version of rand()
$a = mt_rand(1, 10);
$b = mt_rand(1, 10);
// show what the numbers are
echo $a . ' and ' . $b . '<br /> <br />';
// first, output their sum
echo 'Sum: ' . ($a + $b) . '<br />';
// second, output the difference
// abs() is used in case the second number is greater than the first
echo 'Difference: ' . abs($a - $b) . '<br />';
// finally, output the product
echo 'Product: ' . ($a * $b);
?> Which produces:
3 and 10
Sum: 13
Difference: 7
Product: 30
C++:
#include <stdio.h>
#include <stdlib.h>
int main ()
{
int num1, num2;
printf("Enter a number\n>");
scanf("%d", &num1);
printf("Enter another number\n>");
scanf("%d", &num2);
printf("Sum: %d", num1 + num2);
printf("\nDifference: %d", abs(num1 - num2));
printf("\nProduct: %d", num1 * num2);
return 0;
}I've written another C++ solution now that I know a little bit more about the language. This uses more compact code and arguments sent by the user when running the program.
Example usage:
C:\code>arithmetic 9 2
Sum: 11
Difference: 7
Product: 18
C:\code>
#include <stdio.h>
#include <stdlib.h>
using namespace std;
int main(int argc, char *argv[])
{
int n1 = atoi(argv[1]), n2 = atoi(argv[2]);
printf("Sum: %d\nDifference: %d\nProduct: %d", n1 + n2, abs(n1 - n2), n1 * n2);
}