C program for find no of even and odd digits

Program:

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#include<stdio.h>
#include<conio.h>
void main()
{
int n,c1,c2,r;
clrscr();
printf("enter number");
scanf("%d",&n);
while(n>0){
r=n%10;
if(r%2==0)
c1++;
else
c2++;
n=n/10;
}
printf("no of even digits are %d ",c1);
printf("no of odd digits are %d",c2);
getch();
}