Program to find GCD and LCM of two numbers

/* Aim : Program to find GCD & LCM of two numbers*/ #include <stdio.h> #include <conio.h> int a,b,g,l; int gcd(int a,int b); int main() { printf("enter numbers whom you want to find GCD \n"); scanf("%d%d",&a,&b); g=gcd(b,a%b); printf("GCD is : %d\n",g); l=(a*b)/g; printf("LHS is : %d",l); getch(); } int gcd(int a, int b) { if(b==0) return a; else return gcd(b,a%b); }