Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
datetime comparison solution in Clear category for Lightbulb Start Watching by karlian
from datetime import datetime
from typing import List, Optional
def sum_light(els: List[datetime], start_watching: Optional[datetime] = None) -> int:
"""
how long the light bulb has been turned on
"""
if start_watching:
els=[el if el > start_watching else start_watching for el in els]
return sum((off-on).total_seconds() for on, off in zip(els[::2],els[1::2]))
if __name__ == "__main__":
print("Example:")
print(
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 0, 10),
],
datetime(2015, 1, 12, 10, 0, 5),
)
)
assert (
sum_light(
els=[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 0, 10),
],
start_watching=datetime(2015, 1, 12, 10, 0, 5),
)
== 5
)
assert (
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 0, 10),
],
datetime(2015, 1, 12, 10, 0, 0),
)
== 10
)
assert (
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 10, 10),
datetime(2015, 1, 12, 11, 0, 0),
datetime(2015, 1, 12, 11, 10, 10),
],
datetime(2015, 1, 12, 11, 0, 0),
)
== 610
)
assert (
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 10, 10),
datetime(2015, 1, 12, 11, 0, 0),
datetime(2015, 1, 12, 11, 10, 10),
],
datetime(2015, 1, 12, 11, 0, 10),
)
== 600
)
assert (
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 10, 10),
datetime(2015, 1, 12, 11, 0, 0),
datetime(2015, 1, 12, 11, 10, 10),
],
datetime(2015, 1, 12, 10, 10, 0),
)
== 620
)
assert (
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 10, 10),
datetime(2015, 1, 12, 11, 0, 0),
datetime(2015, 1, 12, 11, 10, 10),
datetime(2015, 1, 12, 11, 10, 11),
datetime(2015, 1, 12, 12, 10, 11),
],
datetime(2015, 1, 12, 12, 10, 11),
)
== 0
)
assert (
sum_light(
[
datetime(2015, 1, 12, 10, 0, 0),
datetime(2015, 1, 12, 10, 10, 10),
datetime(2015, 1, 12, 11, 0, 0),
datetime(2015, 1, 12, 11, 10, 10),
datetime(2015, 1, 12, 11, 10, 11),
datetime(2015, 1, 12, 12, 10, 11),
],
datetime(2015, 1, 12, 12, 9, 11),
)
== 60
)
print("The second mission in series is done? Click 'Check' to earn cool rewards!")
May 19, 2022
Comments:
