SUM OF DIGITS OF A NUMBER

Here is a very simple C program that prompts the user to input a number, and then it calculates the sum of all the digits in that number.

For example, if the user inputs 152, then the sum of digits will be 1+5+2=8.

Source code :-

/*****************************************************************************/

//PROGRAM TO FIND THE SUM OF DIGITS OF NUMBER ENTERED BY USER

#include<stdio.h>

#include<conio.h>

int main()

{

long num;

int sum=0;

clrscr();

printf("ENTER THE NUMBER : ");

scanf("%ld",&num);

while(num)

{

sum+=(num%10);

num/=10;

}

printf("THE SUM OF DIGITS IS : %d",sum);

getch();

return 1;

}

/******************************************************************************/