16. PWM Configuration Defaults

Simulate a PWM (Pulse Width Modulation) driver configuration function using C++ default arguments.

Implement a function that configures PWM parameters and prints the resulting configuration.

Function Requirements:

Create a function setPWM with the following parameters:

• duty (required): integer duty-cycle percentage
  • Valid range: 0–100
• frequency (optional): PWM frequency in Hz
  • Default value: 1000
  • Valid range: 1–100000
• deadtime (optional): dead-time in microseconds
  • Default value: 0
  • Valid range: 0–1000

⚠️ Rules:

• Use one function only
• Use default arguments, not function overloading
• Default arguments must appear from right to left

Output Format:

The function must print the PWM configuration exactly as:

duty frequency deadtime

Values must be separated by a single space.

No additional text should be printed.

In main():

• Read two integers: duty and mode
• mode determines which parameters are provided:
• mode == 0
  • Call setPWM(duty)
  • Use default frequency and deadtime
• mode == 1
  • Read frequency
  • Call setPWM(duty, frequency)
• mode == 2
  • Read frequency and deadtime
  • Call setPWM(duty, frequency, deadtime)

You may assume all input values are valid and within the specified ranges.

Example 1 

Input:

50 0

Output:

50 1000 0

Example 2

Input:

70 1 2000

Output:

70 2000 0

Example 3

Input:

90 2 5000 10

Output:

90 5000 10

Constraints:

• 0 ≤ duty ≤ 100
• 1 ≤ frequency ≤ 100000
• 0 ≤ deadtime ≤ 1000
• mode ∈ {0, 1, 2}