Count the numbers in a number

The program counts the numbers of a number. For example take the number 76453, the program counts the total numbers in that numbers and gives output as 5.

#include<stdio.h>
#include<conio.h>
        void main()
        {
            int num,count=0;
            printf("/n Enter a number:");
            scanf("%d",&num);
            for( ; num!=0; num=num/10)
            {
                count++;
            }
            printf("/n Total number of digits are %d",count);
            return 0;
        }