48 lines
1 KiB
Python
48 lines
1 KiB
Python
#!/usr/bin/env python
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# -*- encoding: utf-8; py-indent-offset: 4 -*-
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# Author: Sebastian Mark
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# CC-BY-SA (https://creativecommons.org/licenses/by-sa/4.0/deed.de)
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# pylint: disable=missing-module-docstring,missing-function-docstring,consider-using-f-string
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def readinput():
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with open("input", "r", encoding="utf-8") as file:
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lines = [int(line.strip()) for line in file.readlines()]
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return lines
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def mix_and_prune(i: int, j: int) -> int:
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return (i ^ j) % 16777216
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def calc_number(num: int) -> int:
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for _ in range(2000):
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# step 1
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tmp = num * 64
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num = mix_and_prune(num, tmp)
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# step 2
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tmp = num // 32
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num = mix_and_prune(num, tmp)
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# step 3
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tmp = num * 2048
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num = mix_and_prune(num, tmp)
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return num
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def main():
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intial_numbers = readinput()
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# part 1
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new_numbers = {}
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for num in intial_numbers:
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new_numbers[num] = calc_number(num)
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print("Sum: %d" % sum(new_numbers.values()))
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if __name__ == "__main__":
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main()
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