Finds greatest common divisor of two nonnegative integer values

GCD.c

// Program to find the greatest common divisor of two nonnegative integer values
#include <stdio.h>

int main (void)
{
  int u, v, temp;
  
  printf ("Please type in two nonnegative integers.\n");
  scanf ("%i%i", &u, &v);
  
  while ( v != 0 ) 
  {
    temp = u % v;
    u = v;
    v = temp;
  }
  
  printf ("Their greatest common divisor is %i\n", u);
  
  return 0;
}