15. Timer Prescaler Configuration

Create a function that simulates configuring a hardware timer.

The function must:

• Take two parameters:
  • frequency (required)
  • prescaler (optional, default value must be 1)
• Return the effective timer frequency
   

The effective timer frequency is calculated as:

effectiveFrequency = frequency / prescaler

In main():

• Read two integers: frequency and mode
• If mode == 0:
  • Call the function using only the frequency
• If mode == 1:
  • Read another integer prescaler
  • Call the function with both arguments
• Print the returned effective frequency
   

Example 1

Input:

1000 0

Output:

1000

Example 2

Input:

1000 1 4

Output:

250

Constraints:

• frequency > 0
• prescaler > 0
• Integer arithmetic is used (fractional results are truncated)
• You must use a default argument for prescaler
• Do not create multiple overloads