C++ Exercises: Compute the sum of the digits of an integer using function

C++ For Loop: Exercise-84 with Solution

Write a program in C++ to compute the sum of the digits of an integer using function.

Pictorial Presentation:

Sample Solution:-

C++ Code :

#include <iostream>
using namespace std;

    int sumDigits(int num1,int n) 
	{
        int sum = 0;
        while (num1 != 0) 
		{
            sum += num1 % 10;
            num1 /= 10;
        }
        return sum;
    }
 
int main()
{
	int num1,sum,n;
	sum=0;
    cout << "\n\n Compute the sum of the digits of an integer:\n";
	cout << "-------------------------------------------------\n";
	cout << " Input any number: ";
	cin>> num1;
	n=num1;
	cout<<" The sum of the digits of the number "<<n<<" is: " << sumDigits(num1,n) <<endl;
	}

Sample Output:

Compute the sum of the digits of an integer:                          
-------------------------------------------------                      
 Input any number: 255                                                 
 The sum of the digits of the number 255 is: 12

Flowchart:

C++ Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a program in C++ to compute the sum of the digits of an integer.
Next: Write a program in C++ to reverse a string.