ProblemSolving_gcd_1

#include <stdio.h>

int gcd(int b,int s){
    if (b >= s){
        if (b % s == 0) return s;
        else return gcd(s, b % s);
    }
    else if (b < s) return gcd(s, b);
}

int main(){
    int x, y;
    printf("enter two numbers x, y: ");
    scanf("%d,%d", &x, &y);
    printf("gcd(%d, %d) = %d", x, y, gcd(x, y) );
    return 0;
}