C++ Program to print the sum of n odd and even numbers within range using while

Program

#include <iostream>
using namespace std;
int main()
{
    int start_range, end_range;
    int o_sum = 0;
    int e_sum = 0;
    cout << "Enter the starting range: ";
    cin >> start_range;
    cout << "Enter the ending range: ";
    cin >> end_range;
    int i = start_range;
    while (i <= end_range)
    {
        if (i % 2 != 0)
        {
            o_sum = o_sum + i;
        }
        else
        {
            e_sum = e_sum + i;
        }
        i++;
    }
    cout << "Sum of all odd numbers in given range is :" << o_sum;
    cout << endl;
    cout << "Sum of all even numbers in given range is :" << e_sum;
    return 0;
}

Output

$ g++ sum-of-n-odd-and-even-numbers-within-range-using-while.cpp 
$ ./a.out
Enter the starting range: 30
Enter the ending range: 50
Sum of all odd numbers in given range is :400
Sum of all even numbers in given range is :440