46. GPIO State Enum

Your task is to declare a scoped enum class named PinState representing the logic level of a GPIO pin.

Requirements:

• The enum class must have the values:
  • Low
  • High
• The enum class must use uint8_t as its underlying type.

• Implement a function:

  const char* toString(PinState s)
  

  which returns:

  • "LOW" for PinState::Low
  • "HIGH" for PinState::High

The program will:

• Read an integer input x
• x is guaranteed to be either 0 or 1
• Map:
  • 0 → PinState::Low
  • 1 → PinState::High
• Print the corresponding string representation

No other input values will be provided.

Input / Output Specification
Input:
A single integer x where:

• x == 0 represents a LOW GPIO state
• x == 1 represents a HIGH GPIO state

Output:
Print exactly one of the following strings (no newline required):

• LOW
• HIGH

Example 1
Input:

0

Output:

LOW 

Example 2

Input:

1

Output:

HIGH