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First solution in Clear category for Call to Home by pokosasa
from collections import defaultdict
def total_cost(calls):
day_total=defaultdict(int)
for call in calls:
date, _, duration=call.split()
duration=int(duration)
day_total[date]+=duration//60+(duration%60!=0)
total_cost=0
for t in day_total.values():
if t>100:
total_cost+=100+2*(t-100)
else:
total_cost+=t
return total_cost
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert total_cost(("2014-01-01 01:12:13 181",
"2014-01-02 20:11:10 600",
"2014-01-03 01:12:13 6009",
"2014-01-03 12:13:55 200")) == 124, "Base example"
assert total_cost(("2014-02-05 01:00:00 1",
"2014-02-05 02:00:00 1",
"2014-02-05 03:00:00 1",
"2014-02-05 04:00:00 1")) == 4, "Short calls but money..."
assert total_cost(("2014-02-05 01:00:00 60",
"2014-02-05 02:00:00 60",
"2014-02-05 03:00:00 60",
"2014-02-05 04:00:00 6000")) == 106, "Precise calls"
May 14, 2020
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