Program To Find Sum Of Digit

Some Basic C program frequently asked in Interview.

/* Program to find sum of digit of a number*/ 

#include<stdio.h>

#include<conio.h>

void main()

{

int a,b,s=0;

clrscr();

printf("Enter a number:\t");

scanf("%d",&a);

while(a>0)

{

b=a%10;

s=s+b;

a=a/10;

}

printf("Sum of digit is %d",s);

getch();

}