Question

Write a program that adds the sum of digits in an integer and loops until 0 is entered to end the program C++.

Answer 1

answer)

#include <iostream>
using namespace std;
int main()
{
  
    int reminder,sum,number;
    while(1)
    {
        cout<<"Enter a number :";
        cin>>number;
        sum=0;
        if(number==0)//break the loop when input is zero
           { 
                break;
           }
        while(number!=0)
        {
            reminder=number%10;//taking reminder of number
            sum=sum+reminder;//add remainder to sum variable
            number=number/10;
        }
        cout<<"Sum of digits "<<sum<<endl;
        
    }
    
    return 0;
}

output:

Enter a number :123
Sum of digits 6
Enter a number :454
Sum of digits 13
Enter a number :23
Sum of digits 5
Enter a number :0