gcd program in c
#include <stdio.h>
int main()
{
int t, n1, n2, gcd;
scanf("%d", &t); // Test Case Input
while (t--)
{
scanf("%d %d", &n1, &n2);// Taking numbers input
if (n2 > n1)
{
gcd = n1;
n1 = n2;
n2 = gcd;
}
while (n1 % n2 != 0)
{
gcd = n2;
n2 = n1 % n2;
n1 = gcd;
}
// n2 is our gcd
printf("GCD: %dn", n2);
}
return 0;
}