39 lines
796 B
Python
39 lines
796 B
Python
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import fileinput
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import itertools
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from collections import deque
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adapters = [0]
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for line in fileinput.input():
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adapters.append(int(line))
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adapters.sort()
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adapters.append(adapters[-1] + 3)
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one = 0
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three = 0
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for (fr, to) in zip(adapters[:-1], adapters[1:]):
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if to - fr == 1:
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one += 1
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elif to - fr == 3:
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three += 1
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print(fr, to)
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print(one, three, one * three)
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paths = [0] * len(adapters)
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paths[0] = 1
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ways = 1
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for i, value in enumerate(adapters[:-1]):
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try:
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if adapters[i + 1] <= value + 3:
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paths[i + 1] += paths[i]
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if adapters[i + 2] <= value + 3:
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paths[i + 2] += paths[i]
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if adapters[i + 3] <= value + 3:
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paths[i + 3] += paths[i]
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except IndexError:
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pass
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print(paths)
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print(paths[-1])
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