Program 17 Using While Loop

#include<stdio.h> #include<conio.h> void main()      {            int n,sum=0,r;            clrscr();            printf("enter a number:");            scanf("%d",&n);            while(n!=0)                     {                           r=n%10;                           sum=sum+r;                           n=n/10;                      }             printf("the sum of the digits of the given no. is:=%d",sum);             getch();        }

Output:-

Explanation:

enter the number:34=3 + 4 =7

enter the number:59=5 + 9=14

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