Find Sum OF Digits : C

This program find sum of the digits entered number.The idea is slice the every digits from number and then sum of digits.


Example :

• Assume Entered number is : 789
• Now slice the given number : 9 , 8 ,7.
• Sum of the digits is : 9+8+7=24.

Sum Of Digits :

Program :

#include<stdio.h>
#include<conio.h>
void main()
{

char ch;
do{
         long int n,i,s=0 ,r;
        clrscr();
        printf("\n\tEnter Number(1-999999999):");
       scanf("%ld",&n);
       if(n>=1 || n<=999999999)
      {
        while(n>=1)
        {
           r=n%10;
           s=s+r;
           n=n/10;
        }
    }
    printf("\n\t Sum of digit:<%d>",s);
    printf("\n\t Continue(y/n):");

       ch=getch();
       }while(ch=='y'||ch=='Y');
getch();
}

Output :

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