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Simpler solution in Clear category for Call to Home by thealfest1
def total_cost(calls):
d = dict()
for key, _, val in (line.split() for line in calls):
d[key] = d.get(key, 0) + (int(val)+59)//60
return sum(n + (n - 100) * (n > 100) for n in d.values())
Feb. 4, 2019
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