19. Log Message Timestamp

Create a function that logs messages from firmware.

The function must accept:

• A string message (required)
• A boolean flag indicating whether a timestamp should be included (optional; default = false)

If the timestamp flag is:

• false → print only the message
• true → print a simulated timestamp followed by the message

Use a fixed timestamp value of 123456 for this exercise.

The final printed format must be:

Without timestamp:

message

With timestamp:

[123456] message

In main():

• Read mode
  • 0 → call the function using only the message (default behavior)
  • 1 → call the function with timestamp enabled (true)
• Read the message as a single word.

Example 1

Input:

0 Hello

Output:

Hello

Example 2

Input:

1 Alert

Output:

[123456] Alert

Constraints:

• Use a default argument for the timestamp flag
• Do not create overloaded functions