Program to find the sum of individual digits of a positive integer

Write a C program to find the sum of individual digits of a positive integer

#include<stdio.h>

#include<conio.h>

void main()

{

          int num, k=1, sum=0;

          clrscr();

          printf(“Enter the number whose digits are to be added:”);

          scanf(“%d”,&num);

          while(num!=0)

          {

                   k=num%10;

                   sum=sum+k;

                   k=num/10;

                   num=k;

          }

          printf(“Sum of the digits:%d”,sum);

          getch();

}