5. Write a program to find sum of the digits entered by the user.

#include<stdio.h>

#include<conio.h>

void main()

{

    long int no,i,sum=0,rem,ary[99],k=0;

    clrscr();

    printf("enter digit: ");

    scanf("%ld",&no);

    for(i=0; no>0; i++)

    {

        rem = no % 10;

        ary[i] = rem;

        sum = sum + rem;

        no = no / 10;

        k++;

    }

    printf("\n\n");

    for(i=k-1; i>=0; i--)

    {

        printf("%ld + ",ary[i]);

    }

    printf("\b\b= %ld",sum);

    getch();

}

/*      output:

enter digit: 123456

1 + 2 + 3 + 4 + 5 + 6 = 21

*/