Program to count number of digits in a number.

// program to count number of digits in a number.
#include<stdio.h>
#include<conio.h>
main()
{
     int  num,count=0;
  printf("Enter a number: ");
  scanf("%d",&num);
   while(num)
  {
      num=num/10;
      count++;
  }
  printf("Total digits is:  %d",count);
getch();
}