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First solution in Clear category for Call to Home by thealfest1
import math
def total_cost(calls):
d = dict()
for data in (line.split()[::2] for line in calls):
key, val = data
val = math.ceil(float(val)/60)
d[key] = d.get(key, 0) + val
return sum(n + (n - 100) * (n > 100) for n in d.values())
Feb. 2, 2019
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