Basic C Programming006

If a five digit number is input through the key board, write a program to calculate the sum of its digits.
[ Use the modulus operator ' % ' . The division operator ' / ' , returns the quotient on dividing one number by another, whereas the modulus operator ' % ' gives the remainder on dividing one number by another. For example {m = 14 % 2 would store 0 in m } { m = 16 % 3 would store 1 in m } ]


#include <stdio.h>
#include <conio.h>
void main ( )
{     
        int       num, p, q, sum = 0;
        clrscr ( );
                 
        printf ("\n\n\n\t Enter a five digit number (less than 32767)...:"); scanf ("%d",&num);
                 
        p = num % 10;                       /* last digit extracted as reminder */
        q = num /10;                          /* remaining digits */
        sum = sum + p;                                                     
                                                                                                     
        p = q % 10;                           /* fourth digit */
        q = q /10;                                                      
        sum = sum + p;                                                     
                                                                     
        p = q % 10;                           /* third digit */
        q = q /10;                                           
        sum = sum + p;                                   
                                                                        
        p = q % 10;                           /* second digit */
        q = q /10;                                                           
        sum = sum + p;                                               
                                                                       
        p = q % 10;                           /* first digit */
        sum = sum + p;
                       
        printf ("\n\n\t The Sum of the five digits of %d is.....:%d", num, sum);
        getch ( );
}

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