Challenge 1: Observing Constructor and Destructor Order — Possible Solution
====================================================================

#include <iostream>

class IntArray {
private:
    int *data;

public:
    IntArray(int size) {
        data = new int[size];
        std::cout << "IntArray constructed" << std::endl;
    }

    ~IntArray() {
        delete[] data;
        std::cout << "IntArray destroyed" << std::endl;
    }
};

int main() {
    std::cout << "Before inner scope" << std::endl;
    {
        IntArray arr(10);
        std::cout << "Inside inner scope" << std::endl;
    }
    std::cout << "After inner scope" << std::endl;
    return 0;
}

Output:

    Before inner scope
    IntArray constructed
    Inside inner scope
    IntArray destroyed
    After inner scope

WHY THIS WORKS AS AN ANSWER
------------------------------
The constructor message prints the moment arr is declared (new[]
allocates, the constructor body runs immediately after), and the
destructor message prints exactly at the closing brace of the inner
scope -- not at the end of main -- confirming the resource is released
automatically the instant the object's lifetime ends, exactly the RAII
mechanism the chapter describes.