59. GPIO Pin Class

Define a simple C++ class named GpioPin.

Class Requirements:

The class should contain:

• An integer variable to store the pin number
• An integer variable to store the pin state
  • 0 represents LOW
  • 1 represents HIGH

Constructor Requirements:

• Provide a default constructor only
• The default constructor must initialize:
  • Pin state to 0 (LOW)
• Pin number will be assigned manually after object creation

Member Functions:

• void write(int value)
  • Sets the pin state
  • The value will always be 0 or 1
• int read()
  • Returns the current pin state

In main() Function:

1. Read three integers from standard input:
   • pin
   • initialValue
   • finalValue
2. Create a GpioPin object using the default constructor
3. Assign the pin number directly to the object
4. Call write(initialValue)
5. Call write(finalValue)
6. Print the output in the required format using read()

Input Format:

pin
initialValue
finalValue

• pin is a non-negative integer
• initialValue and finalValue are always 0 or 1

Output Format:

GPIO Pin <pin number> State <pin state>

• Output must match the format exactly
• Single line output
• No extra spaces or newlines

Example Input:

13
0
1

Example Output:

GPIO Pin 13 State 1 

Constraints:

• Use only a basic class with variables and functions
• Do not use constructor parameters
• Do not use advanced OOP concepts
• No input validation is required
• Output must match exactly