35 lines
867 B
Python
Executable file
35 lines
867 B
Python
Executable file
#!/usr/bin/env python
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import math
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import sys
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from collections.abc import Iterator
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def solve(input: str) -> int:
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def parse_range(input: str) -> tuple[int, int]:
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start, end = input.split("-")
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return int(start), int(end)
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def parse(input: str) -> list[tuple[int, int]]:
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return [parse_range(r) for r in input.split(",")]
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def iter_invalids(start: int, end: int) -> Iterator[int]:
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for n in range(start, end):
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digits = int(math.log10(n)) + 1
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if digits % 2 == 1:
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continue
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base = 10 ** (digits // 2) + 1
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if n % base == 0:
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yield n
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ranges = parse(input)
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return sum(sum(iter_invalids(start, end + 1)) for start, end in ranges)
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def main() -> None:
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input = sys.stdin.read()
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print(solve(input))
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if __name__ == "__main__":
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main()
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