GPIO Pin Class

#include <iostream>
using namespace std;

// Define class GpioPin here
class GpioPin {
public:
    int pinNumber;   // pin number (assigned manually)
    int pinState;    // 0 = LOW, 1 = HIGH

    // Default constructor
    GpioPin() {
        pinState = 0; // initialize to LOW
        pinNumber = -1; // default invalid, will be set manually
    }

    // Write function to set pin state
    void write(int value) {
        pinState = value;
    }

    // Read function to return pin state
    int read() {
        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