GPIO State Enum

#include <iostream>
#include <cstdint>
using namespace std;

// your code here: declare enum class PinState with values Low, High
enum class PinState {
    Low,
    High
};

// implement toString(PinState s)
const char* toString(PinState s) {
    switch (s) {
        case PinState::Low: return "LOW";
        case PinState::High: return "HIGH";
        default: return "Unknown";
    }
}
int main() {
   int x;
   cin >> x;
   PinState s = (x == 0) ? PinState::Low : PinState::High;
   cout << toString(s);
   return 0;
}