GPIO Pin Operator Overload

#include <iostream>
using namespace std;

// Define enum class Level
// Define class GpioPin with operator= and operator int()
enum class Level { LOW = 0, HIGH = 1 };

class GpioPin {
    private: 
        Level level; 
    public: 
        explicit GpioPin(Level l) : level(l) {}

        GpioPin& operator=(Level l) {
            level = l; 
            return *this; 
        }

        operator int() const {
            return static_cast<int>(level);
        }
}; 


int main() {
    int init, next;
    cin >> init >> next;

    GpioPin pin(static_cast<Level>(init));

    pin = static_cast<Level>(next);

    cout << pin;

    return 0;
}

Solving Approach