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Merged
ikostan merged 2 commits into from
Aug 30, 2025
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[Sync Iteration] python/meltdown-mitigation/1 #11

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[Sync Iteration] python/meltdown-mitigation/1
exercism-solutions-syncer[bot] Aug 7, 2025
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Merge pull request #48 from ikostan/main
ikostan Aug 30, 2025
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71 changes: 71 additions & 0 deletions solutions/python/meltdown-mitigation/1/conditionals.py
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"""Functions to prevent a nuclear meltdown."""


def is_criticality_balanced(temperature, neutrons_emitted) -> bool:
"""Verify criticality is balanced.

:param temperature: int or float - temperature value in kelvin.
:param neutrons_emitted: int or float - number of neutrons emitted per second.
:return: bool - is criticality balanced?

A reactor is said to be critical if it satisfies the following conditions:
- The temperature is less than 800 K.
- The number of neutrons emitted per second is greater than 500.
- The product of temperature and neutrons emitted per second is less than 500000.
"""
return temperature < 800 and neutrons_emitted > 500 and (temperature * neutrons_emitted) < 500000


def reactor_efficiency(voltage, current, theoretical_max_power) -> str:
"""Assess reactor efficiency zone.

:param voltage: int or float - voltage value.
:param current: int or float - current value.
:param theoretical_max_power: int or float - power that corresponds to a 100% efficiency.
:return: str - one of ('green', 'orange', 'red', or 'black').

Efficiency can be grouped into 4 bands:

1. green -> efficiency of 80% or more,
2. orange -> efficiency of less than 80% but at least 60%,
3. red -> efficiency below 60%, but still 30% or more,
4. black -> less than 30% efficient.

The percentage value is calculated as
(generated power/ theoretical max power)*100
where generated power = voltage * current
"""
generated_power = voltage * current
efficiency = (generated_power/theoretical_max_power)*100

if efficiency < 30:
return 'black'
elif 30 <= efficiency < 60:
return 'red'
elif 60 <= efficiency < 80:
return 'orange'

return 'green'


def fail_safe(temperature, neutrons_produced_per_second, threshold) -> str:
"""Assess and return status code for the reactor.

:param temperature: int or float - value of the temperature in kelvin.
:param neutrons_produced_per_second: int or float - neutron flux.
:param threshold: int or float - threshold for category.
:return: str - one of ('LOW', 'NORMAL', 'DANGER').

1. 'LOW' -> `temperature * neutrons per second` < 90% of `threshold`
2. 'NORMAL' -> `temperature * neutrons per second` +/- 10% of `threshold`
3. 'DANGER' -> `temperature * neutrons per second` is not in the above-stated ranges
"""
current_state = (temperature * neutrons_produced_per_second) / 100
thr_percent = threshold / 100

if thr_percent - 10 <= current_state <= thr_percent + 10:
return 'NORMAL'
elif current_state < thr_percent - 10:
return 'LOW'

return 'DANGER'