Sum of Digits

Wap to get the sum of the digits of a number.

#include<iostream.h>

#include<conio.h>

void main()

{

clrscr();

int n,sum=0,r;

cout<<"\n enter no.";

cin>>n;

for(;num!=0;)

{

r=n%10;

n/=10;

sum+=r;

}

cout<<sum;

getch();

}

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OUTPUT:

enter no. 234

9

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