42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
from typing import Tuple
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def parse_data() -> Tuple[list[int], list[int]]:
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data = ([], [])
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mode = -1
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with open("input.txt") as file:
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for line in file:
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line = line.rstrip()
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if line == "Player 1:":
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mode = 0
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elif line == "Player 2:":
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mode = 1
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elif mode == -1 or not line:
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continue
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else:
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data[mode].append(int(line))
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return data
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def solve_p1(player1: list[int], player2: list[int]) -> int:
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stack1 = list(reversed(player1))
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stack2 = list(reversed(player2))
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while len(stack1) > 0 and len(stack2) > 0:
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number1 = stack1.pop()
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number2 = stack2.pop()
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if number1 > number2:
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stack1.insert(0, number1)
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stack1.insert(0, number2)
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else:
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stack2.insert(0, number2)
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stack2.insert(0, number1)
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winning = stack1 if len(stack1) > 0 else stack2
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return sum(x*y for (x, y) in (zip(winning, [x for x in range(1, len(winning)+1)])))
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PLAYER1, PLAYER2 = parse_data()
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print(solve_p1(PLAYER1, PLAYER2))
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