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Answer to Question #44308 in C++ for hamza

Question #44308
Write a C-program that asks the user to type an integer N for finding the sum of the
numbers 2, 4, 6, 8, …, n
Expert's answer
#include <iostream>
int calculateSum(int *arr, int size)
{
    int sum = 0;
    for(int i = 0; i < size; ++i)
        sum += arr[i];
    return sum;
}
int main()
{
    int size;
    std::cout << "Enter size: " << std::endl;
    std::cin >> size;
    size /= 2;
    int *arr = new int[size];
    for(int i = 0; i < size; ++i)
    {
        arr[i] = (i + 1) * 2;
    }
    std::cout << "Sum: " << calculateSum(arr, size) << std::endl;
    std::cin.get();
        return 0;
}

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