Evon Number

Evon Number is a number whose number of digits is equal to the number of even digits.

Example 1: 2462 has four digits and four even digits. Hence it is an Evon Number.

Example 2: 1441 has four digits but two even digits. Hence it is not an Evon Number.

C
#include <stdio.h>
void main()
{
    int n=0,r=0,nCopy=0,flag=0,count=0;
    printf("Enter a number: ");
    scanf("%d",&n);
    nCopy=n;
    while(n>0)
    {
        r=n%10;
        if(r%2==0)
        {
            flag++;
        }
        count++;
        n=n/10;
    }
    if(flag==count)
    {
        printf("%d is an Evon Number",nCopy);
    }
    else
    {
        printf("%d is not an Evon Number",nCopy);
    }
}
C