GPIO Pin Class

#include <iostream>
using namespace std;

// Define class GpioPin here

class GpioPin{
    private:
    int pinState;

    public:
    GpioPin() noexcept : pinState(0) {};

    int pinNumber;

    void write(int pinState) noexcept
    {
        this->pinState = pinState;
    }

    int read() const noexcept
    {
        return pinState;
    }
};

int main() {
    int pin, initialValue, finalValue;
    cin >> pin >> initialValue >> finalValue;

    GpioPin gpio;          // default constructor
    gpio.pinNumber = pin; // manual assignment

    gpio.write(initialValue);
    gpio.write(finalValue);

    cout << "GPIO Pin " << gpio.pinNumber
         << " State " << gpio.read();

    return 0;
}

Solving Approach