c++ program to find gcd of 3 numbers
#include<stdio.h>
int main() {
int a,b,c,hcf,st;
printf("Enter three numbers : ");
scanf("%d,%d,%d", &a,&b,&c);
st=a<b?(a<c?a:c):(b<c?b:c);
for (hcf=st;hcf>=1;hcf--) {
if (a%hcf==0 && b%hcf==0 && c%hcf==0)
break;
}
printf("%d",hcf); return 0;
}