33 lines
733 B
Python
33 lines
733 B
Python
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from solutions import BaseSolution
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class Solution(BaseSolution):
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input_file = '17.txt'
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def __str__(self):
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return 'Day 17: Spinlock'
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def solve(self, puzzle_input):
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n = int(puzzle_input)
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l = [0]
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pos = 0
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for i in range(1, 2018):
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pos = (pos + n) % i + 1
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l.insert(pos, i)
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return l[pos + 1 % 2017]
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def solve_again(self, puzzle_input):
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pos = 0
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n = int(puzzle_input)
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last_seen = 0
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for i in range(1, 5 * 10 ** 7 + 1):
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pos = (pos + n) % i + 1
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if pos == 1:
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last_seen = i
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return last_seen
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if __name__ == '__main__':
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solution = Solution()
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solution.show_results()
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