Table of Contents

Overview

C++ program to calculate the sum of digits of a number. The program prompts the user to enter the number. For example: Enter number: 7865 The output should be 7+ 8 + 6 + 5 = 26

C++ Program

#include 
#include 
#include 
using namespace std;
int main()
{
 int sumOfDigits;
 int quotient;
 int digit;
 int number;


 cout << "Enter a positive number:= "; cin >> number;
 sumOfDigits =0;
 if (number>=0)
 {
 quotient =number;
 while (!(quotient==0))
 {
 digit =quotient % 10;
 sumOfDigits =sumOfDigits+digit;
 quotient =floor(quotient/10);
 }
 cout << "Sum of digits of the number " << number << " is =: " << sumOfDigits << endl;
 }
 else
 {
 cout << "ERROR : Enter positive number" << endl;
 }

 return 0;
}