AoC 2023 day 4

Síle Ekaterin Liszka 2023-12-04 00:42:20 -08:00
parent a693bbffd1
commit 1139afe105
2 changed files with 93 additions and 0 deletions

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4/a.py Executable file
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#!/usr/bin/env python3
# Copyright 2023 Síle Ekaterin Liszka
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
total = 0
with open('input.txt', mode='r') as f:
for line in f.readlines():
line = line.removesuffix('\n')
card, numbers = line.split(': ', maxsplit=2)
winning, hand = numbers.split(' | ', maxsplit=2)
winning = winning.split()
hand = hand.split()
score = 0
for num in hand:
if num in winning:
score += 1
if score > 0:
score = 2 ** (score - 1)
total += score
print('total score is', total)

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4/b.py Executable file
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#!/usr/bin/env python3
# Copyright 2023 Síle Ekaterin Liszka
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
total = 0
cards = {}
deck = 1
with open('input.txt', mode='r') as f:
for line in f.readlines():
line = line.removesuffix('\n')
card, numbers = line.split(': ', maxsplit=1)
_, card = card.split(' ', maxsplit=1)
card = int(card)
winning, hand = numbers.split(' | ', maxsplit=1)
winning = winning.split()
hand = hand.split()
score = 0
for num in hand:
if num in winning:
score += 1
cards[card] = score
deck += 1
def score(idx):
global cards
ret = cards[idx]
if ret == 0:
return ret
x = ret + 1
for i in range(1, x):
ret += score(idx + i)
return ret
count = deck - 1
for i in range(1, deck):
count += score(i)
print('total cards is', count)