Euclidean program for finding gcd in c [closed]

Question

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.

Closed 8 years ago.

I want to perform euclidean progran in c but getting incorrect answer.I have prepared following code for finding gcd

#include<stdio.h>
#include<conio.h>
int gcd(int r1,int r2)
{
int r;
r=r1%r2;
while(r>0)
{
return gcd(r2,r);
}
return r2;
}
void main()
{
int a,b,ans;
clrscr();
printf("enter value of a");
scanf("%d",&a);
printf("enter value of b");
scanf("%d",&b);
ans=gcd(a,b);
printf("%d",ans);
getch();
}

Answer 1

int a;

...

scanf("%d",a);

This function call is incorrect C code.