/* Sum of digits -  Program to find sum of digits of a given number */

#include  <stdio.h>
#include  <conio.h>

void main()
{
    int  n, sum=0, r, temp ;
    clrscr() ;
    printf("Enter a number: ") ;
    scanf("%d", &n) ;
    temp=n ;
    while(n!=0)
        {
            r=n%10 ;    /* Extract the last digit */
            sum=sum+r ;  /* Finding sum */
            n=n/10 ;    /* Reduce number by 1 digit */
        }
    printf("Sum of digits of %d is %d", temp, sum) ;
    getch() ;
}
/*
Output

Enter a number: 246
Sum of digits of 246 is 12
*/