Error Code Mapping

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

// Declare a scoped enum class ErrorCode : uint8_t
// with the following explicit values:
// None = 0
// Timeout = 1
// Overflow = 2
// Invalid = 3

enum class ErrorCode:uint8_t{
    None,Timeout,Overflow,Invalid
};
// Implement:
// const char* toString(ErrorCode e);
const char* toString(ErrorCode e)
{
    switch(e)
    {
        case ErrorCode::None:return "None";
        case ErrorCode::Timeout:return "Timeout";
        case ErrorCode::Overflow:return "Overflow";
        case ErrorCode::Invalid:return "Invalid";
    }
}

int main() {
    int x;
    cin >> x;

    // Input value is guaranteed to be in the range 0&#8211;3
    ErrorCode e = static_cast<ErrorCode>(x);

    cout << toString(e);
    return 0;
}

Solving Approach