C Program to Print Sum of All the Digits in Number.

Program:

#include<stdio.h>
main()
{
 int store,n,sum=0,x;
 printf("Enter a number: ");
 scanf("%d",&n);
 store=n;
 while(n>0)
 {
   x=n%10;
   sum=sum+x;
   n=n/10;
 }
 printf("The sum of all the digits in %d is %d",store,sum);
}

Output: