57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
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#!/usr/bin/env python
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import functools
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import sys
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from collections import Counter
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Play = tuple[str, int]
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ORDER = "23456789TJQKA"
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def solve(input: list[str]) -> int:
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def parse(input: list[str]) -> list[Play]:
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return [(hand, int(bid)) for hand, bid in map(str.split, input)]
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# Stronger hands compare higher than weaker hands
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def cmp_hand(lhs: str, rhs: str) -> int:
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def to_type(hand: str) -> list[int]:
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return [count for _, count in Counter(hand).most_common()]
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def cmp_type(lhs: list[int], rhs: list[int]) -> int:
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for left, right in zip(lhs, rhs):
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if (cmp := left - right) != 0:
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return cmp
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return 0
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def cmp_card(lhs: str, rhs: str) -> int:
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assert lhs in ORDER and rhs in ORDER # Sanity check
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assert len(lhs) == 1 and len(rhs) == 1 # Sanity check
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return ORDER.find(lhs) - ORDER.find(rhs)
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if (cmp := cmp_type(to_type(lhs), to_type(rhs))) != 0:
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return cmp
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for left, right in zip(lhs, rhs):
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if (cmp := cmp_card(left, right)) != 0:
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return cmp
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return 0
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def cmp_play(lhs: Play, rhs: Play) -> int:
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return cmp_hand(lhs[0], rhs[0])
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plays = parse(input)
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plays = sorted(plays, key=functools.cmp_to_key(cmp_play))
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return sum(rank * bid for rank, (_, bid) in enumerate(plays, start=1))
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def main() -> None:
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input = sys.stdin.read().splitlines()
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print(solve(input))
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if __name__ == "__main__":
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main()
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