99 lines
2.2 KiB
Python
99 lines
2.2 KiB
Python
import matrix
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import shared
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from dataclasses import dataclass
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from collections import defaultdict
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from pprint import pprint
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from typing import List
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# STRENGTHS = list(reversed("A, K, Q, J, T, 9, 8, 7, 6, 5, 4, 3, 2".split(", ")))
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STRENGTHS = "A, K, Q, J, T, 9, 8, 7, 6, 5, 4, 3, 2".split(", ")
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STRENGTHS_TO_WEIGHT = {k: idx for idx, k in enumerate(STRENGTHS)}
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STRENGTH_HANDS = [
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"Five of a Kind",
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"Four of a Kind",
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"Full House",
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"Three of a Kind",
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"Two Pair",
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"One Pair",
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"High Card",
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]
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def determine_hand(cards):
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card_set = set(cards)
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if len(card_set) == 1:
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return "Five of a Kind"
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same_cards = sorted([cards.count(a) for a in card_set])
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if len(same_cards) == 2:
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if max(same_cards) == 4:
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return "Four of a Kind"
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elif max(same_cards) == 3:
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return "Full House"
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elif len(same_cards) == 3:
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if max(same_cards) == 3:
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return "Three of a Kind"
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else:
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return "Two Pair"
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elif len(same_cards) == 4:
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return "One Pair"
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return "High Card"
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@dataclass
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class Hand:
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cards: str
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bid: int
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def counts(self):
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return Counter(self.cards)
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def kind(self):
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cards = [c for c in self.cards]
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return determine_hand(self.cards)
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def sort_cards(self):
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return [STRENGTHS_TO_WEIGHT[x] for x in self.cards]
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def __lt__(self, other):
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return self.sort_cards() > other.sort_cards()
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# @shared.profile
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def part1(rows):
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hands = defaultdict(list)
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for row in rows:
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cards, bid = row.split()
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hand = Hand(cards=cards, bid=int(bid))
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hands[hand.kind()].append(hand)
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hands[hand.kind()] = list(sorted(hands[hand.kind()]))
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in_order = []
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for kind in reversed(STRENGTH_HANDS):
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in_order.extend(hands[kind])
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total = 0
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for rank, card in enumerate(in_order):
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total += (rank + 1) * card.bid
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print(total)
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# @shared.profile
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def part2(rows):
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pass
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def main():
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rows = [row for row in shared.load_rows(7)]
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with shared.elapsed_timer() as elapsed:
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part1(rows)
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print("🕒", elapsed())
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with shared.elapsed_timer() as elapsed:
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part2(rows)
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print("🕒", elapsed())
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if __name__ == "__main__":
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main()
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