48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
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#!/usr/bin/env python3
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# Copyright 2023 Síle Ekaterin Liszka
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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patterns = []
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with open('input.txt', mode='r') as f:
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for line in f.readlines():
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patterns.append(tuple([int(x) for x in line[:-1].split(' ')]))
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def diff(pattern):
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return [pattern[x] - pattern[x - 1] for x in range(1, len(pattern))]
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pnext = {}
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for pattern in patterns:
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diffs = [list(pattern)]
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x = pattern
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while x := diff(x):
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diffs.append(x)
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if sum(x) == 0:
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break
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diffs.reverse()
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for i in range(1, len(diffs)):
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diffs[i].append(diffs[i - 1][-1] + diffs[i][-1])
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pnext[pattern] = diffs[-1][-1]
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print(sum(pnext.values()))
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