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Answer to Question #22526 in C++ for Otis

Question #22526
(Summing the digits in an integer) Write a function that computes the sum of the digits in an integer. Use the following function header.

int sumDigits (long n)

Write a test program that prompts the user to enter an integer and display the sum of all its digits.
Expert's answer
#include <conio.h>
#include <iostream>

using namespace std;

int sumDigits(long n)
char digit;
int result = 0;

while (n != 0)
digit = n % 10;
result += digit;
n /= 10;
return result;

void main()
long n;
cout << "Enter an integer number: ";
cin >> n;
cout << "The sum of its digits is: " << sumDigits(n) << endl;

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23.01.13, 23:00

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23.01.13, 22:58

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