In services.py

Write a function, new_temperature(current: float, power: float, minutes: int), that calculates the new internal temperature after cooling for a given number of minutes.

• Subtract the cooling effect from the current temperature.
• The temperature cannot go below 0.

Example:

>>> new_temperature(8.0, 0.5, 10)
3.0
>>> new_temperature(3.0, 1.0, 10)
0.0

In services.py

Write a function, temperature_status(temp: float), that returns the condition of the fridge based on its current temperature:

• 0 - 4 (excluding 4) -> "too cold"
• 4 - 7 (excluding 7) -> "optimal"
• 7+ -> "too warm"

Example:

>>> temperature_status(2.0)
'too cold'
>>> temperature_status(5.0)
'optimal'
>>> temperature_status(9.5)
'too warm'

In services.py

Write a function, adjust_cooling(status: str), that determines the appropriate cooling power based on the current temperature status:

• "too cold" -> 0.2
• "optimal" -> 0.5
• "too warm" -> 1.0

Example:

>>> adjust_cooling("too warm")
1.0
>>> adjust_cooling("optimal")
0.5
>>> adjust_cooling("too cold")
0.2

In main.py

Write a function, simulate_fridge(temp: float, minutes: int), that simulates how the refrigerator behaves minute by minute.

For each minute:

• Determine the current status (too cold, optimal, too warm)
• Print the minute, temperature, and status
• Adjust the cooling power based on the temperature status
• Update the temperature for the next minute

Example:

>>> simulate_fridge(9.0, 9)
Minute 0: Temp = 9.0 (too warm)
Minute 1: Temp = 8.0 (too warm)
Minute 2: Temp = 7.0 (too warm)
Minute 3: Temp = 6.0 (optimal)
Minute 4: Temp = 5.5 (optimal)
Minute 5: Temp = 5.0 (optimal)
Minute 6: Temp = 4.5 (optimal)
Minute 7: Temp = 4.0 (optimal)
Minute 8: Temp = 3.5 (too cold)
Minute 9: Temp = 3.3 (too cold)