Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
Stepwise solution in Clear category for Lightbulb Start Watching by sawako.oono
from datetime import datetime
from typing import List, Optional
def sum_light(els: List[datetime], start_watching: Optional[datetime] = None) -> int:
if start_watching == None:
gap = 0
for i in range(len(els)):
if i%2 != 0:
gap = gap + (els[i]-els[i-1]).total_seconds()
else:
gap = 0
for i in range(len(els)):
if (i%2 != 0 and els[i]>=start_watching):
if els[i-1]<=start_watching:
gap = gap + (els[i]-start_watching).total_seconds()
else:
gap = gap + (els[i]-els[i-1]).total_seconds()
return gap
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 20, 2021
Comments:
