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First solution in Uncategorized category for Call to Home by Rounin
def total_cost(calls):
sum = 0
minutes = {}
for call in calls:
call = call.split(' ')
minutes[call[0]] = (minutes[call[0]] if call[0] in minutes else 0) + ((int(call[2])+59)//60)
for minute in minutes:
sum += min(minutes[minute], 100) + 2*max(minutes[minute]-100, 0)
return sum
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"
July 29, 2017