Write a program in C++ to find the sum of digits of a given number.
Sample Output:
Input a number: 1234
The sum of digits of 1234 is: 10
#include <iostream>
using namespace std;
int main()
{
int num1, num2, r, sum=0;
cout << "
Find the sum of digits of a given number:
";
cout << "----------------------------------------------
";
cout << " Input a number: ";
cin >> num1;
num2 = num1;
while (num1 > 0)
{
r = num1 % 10;
num1 = num1 / 10;
sum = sum + r;
}
cout << " The sum of digits of " << num2 << " is: " << sum << endl;
}