/* 6(b) W.A.P. to find
GCD of 2 non-zero integers. */
#include<stdio.h>
void main()
{
int a,b,c,d;
clrscr();
printf("Input values of a & b : ");
scanf("%d %d",&a,&b);
if ((a>0) && (b>0))
{
c=a;
d=b;
while (c!=d)
{
if (c>d) c-=d;
else d-=c;
}
printf("\n\nYou entered values a = %d and b = %d",a,b);
printf("\n\nG.C.D. of two numbers is %d",c);
}
else printf("\n\n!!! Invalid Entry. Please Try Again. !!!");
getch();
}