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Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.

AoC 2023

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🍪 - 2023 DAY 7 SOLUTIONS -🍪 (self.advent_of_code)

submitted 11 months ago* (last edited 11 months ago) by Ategon to c/advent_of_code

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Day 7: Camel Cards

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[–] [email protected] 2 points 11 months ago* (last edited 11 months ago)

Python

Part 1: https://github.com/porotoman99/Advent-of-Code-2023/blob/main/Day%207/part1.py

Code

import os

filePath = os.path.dirname(os.path.realpath(__file__))
inputFilePath = filePath + "\\adventofcode.com_2023_day_7_input.txt"
# inputFilePath = filePath + "\\part1.txt"

def typeSort(hand):
	cardCount = {
		"2": 0,
		"3": 0,
		"4": 0,
		"5": 0,
		"6": 0,
		"7": 0,
		"8": 0,
		"9": 0,
		"T": 0,
		"J": 0,
		"Q": 0,
		"K": 0,
		"A": 0
	}
	for card in hand:
		cardCount[card] += 1
	cardTotals = list(cardCount.values())
	cardTotals.sort(reverse=True)
	if(cardTotals[0] == 5):
		return 6
	elif(cardTotals[0] == 4):
		return 5
	elif(cardTotals[0] == 3 and cardTotals[1] == 2):
		return 4
	elif(cardTotals[0] == 3):
		return 3
	elif(cardTotals[0] == 2 and cardTotals[1] == 2):
		return 2
	elif(cardTotals[0] == 2):
		return 1
	else:
		return 0

def bucketSort(camelCard):
	totalScore = 0
	cardOrder = ["2","3","4","5","6","7","8","9","T","J","Q","K","A"]
	hand = camelCard[0]
	totalScore += cardOrder.index(hand[4]) * 15 ** 1
	totalScore += cardOrder.index(hand[3]) * 15 ** 2
	totalScore += cardOrder.index(hand[2]) * 15 ** 3
	totalScore += cardOrder.index(hand[1]) * 15 ** 4
	totalScore += cardOrder.index(hand[0]) * 15 ** 5
	return totalScore

hands = []
bids = []

with open(inputFilePath) as inputFile:
	for line in inputFile:
		lineSplit = line.split()
		hand = lineSplit[0]
		bid = lineSplit[1]
		hands.append(hand)
		bids.append(bid)

bids = [int(bid) for bid in bids]

camelCards = list(zip(hands,bids))

typeBuckets = [[],[],[],[],[],[],[]]

for camelCard in camelCards:
	hand = camelCard[0]
	typeScore = typeSort(hand)
	typeBuckets[typeScore].append(camelCard)

finalCardSort = []

for bucket in typeBuckets:
	if(len(bucket) > 1):
		bucket.sort(key=bucketSort)
	for camelCard in bucket:
		finalCardSort.append(camelCard)

camelScores = []

for camelIndex in range(len(finalCardSort)):
	scoreMultiplier = camelIndex + 1
	camelCard = finalCardSort[camelIndex]
	camelScores.append(camelCard[1] * scoreMultiplier)

print(sum(camelScores))

Part 2: https://github.com/porotoman99/Advent-of-Code-2023/blob/main/Day%207/part2.py

Code

import os

filePath = os.path.dirname(os.path.realpath(__file__))
inputFilePath = filePath + "\\adventofcode.com_2023_day_7_input.txt"
# inputFilePath = filePath + "\\part1.txt"

def typeSort(hand):
	cardCount = {
		"J": 0,
		"2": 0,
		"3": 0,
		"4": 0,
		"5": 0,
		"6": 0,
		"7": 0,
		"8": 0,
		"9": 0,
		"T": 0,
		"Q": 0,
		"K": 0,
		"A": 0
	}
	for card in hand:
		cardCount[card] += 1
	jokerCount = cardCount["J"]
	cardCount["J"] = 0
	cardTotals = list(cardCount.values())
	cardTotals.sort(reverse=True)
	if(cardTotals[0] + jokerCount == 5):
		return 6
	elif(cardTotals[0] + jokerCount == 4):
		return 5
	elif(
		cardTotals[0] + jokerCount == 3 and cardTotals[1] == 2
		or cardTotals[0] == 3 and cardTotals[1] + jokerCount == 2
	):
		return 4
	elif(cardTotals[0] + jokerCount == 3):
		return 3
	elif(
		cardTotals[0] + jokerCount == 2 and cardTotals[1] == 2
		or cardTotals[0] == 2 and cardTotals[1] + jokerCount == 2
	):
		return 2
	elif(cardTotals[0] + jokerCount == 2):
		return 1
	else:
		return 0

def bucketSort(camelCard):
	totalScore = 0
	cardOrder = ["J","2","3","4","5","6","7","8","9","T","Q","K","A"]
	hand = camelCard[0]
	totalScore += cardOrder.index(hand[4]) * 15 ** 1
	totalScore += cardOrder.index(hand[3]) * 15 ** 2
	totalScore += cardOrder.index(hand[2]) * 15 ** 3
	totalScore += cardOrder.index(hand[1]) * 15 ** 4
	totalScore += cardOrder.index(hand[0]) * 15 ** 5
	return totalScore

hands = []
bids = []

with open(inputFilePath) as inputFile:
	for line in inputFile:
		lineSplit = line.split()
		hand = lineSplit[0]
		bid = lineSplit[1]
		hands.append(hand)
		bids.append(bid)

bids = [int(bid) for bid in bids]

camelCards = list(zip(hands,bids))

typeBuckets = [[],[],[],[],[],[],[]]

for camelCard in camelCards:
	hand = camelCard[0]
	typeScore = typeSort(hand)
	typeBuckets[typeScore].append(camelCard)

finalCardSort = []

for bucket in typeBuckets:
	if(len(bucket) > 1):
		bucket.sort(key=bucketSort)
	for camelCard in bucket:
		finalCardSort.append(camelCard)

camelScores = []

for camelIndex in range(len(finalCardSort)):
	scoreMultiplier = camelIndex + 1
	camelCard = finalCardSort[camelIndex]
	camelScores.append(camelCard[1] * scoreMultiplier)

print(sum(camelScores))

I tried to do this one as quickly as possible, so the code is more messy than I would prefer, but it works, and I don't think the solution is too bad overall.

Edit: I went back and changed it to be a bit better. Here are my new solutions:

Part 1 v2: https://github.com/porotoman99/Advent-of-Code-2023/blob/main/Day%207/part1v2.py

Code

import os

filePath = os.path.dirname(os.path.realpath(__file__))
inputFilePath = filePath + "\\adventofcode.com_2023_day_7_input.txt"
# inputFilePath = filePath + "\\part1.txt"

CARD_ORDER = "23456789TJQKA"

def typeSort(camelCard):
	cardCount = {}
	for card in CARD_ORDER:
		cardCount[card] = 0
	hand = camelCard[0]
	for card in hand:
		cardCount[card] += 1
	cardTotals = list(cardCount.values())
	cardTotals.sort(reverse=True)
	if(cardTotals[0] == 5):
		return 6
	elif(cardTotals[0] == 4):
		return 5
	elif(cardTotals[0] == 3 and cardTotals[1] == 2):
		return 4
	elif(cardTotals[0] == 3):
		return 3
	elif(cardTotals[0] == 2 and cardTotals[1] == 2):
		return 2
	elif(cardTotals[0] == 2):
		return 1
	else:
		return 0

def handSort(camelCard):
	totalScore = 0
	hand = camelCard[0]
	totalScore += CARD_ORDER.index(hand[4]) * 15 ** 1
	totalScore += CARD_ORDER.index(hand[3]) * 15 ** 2
	totalScore += CARD_ORDER.index(hand[2]) * 15 ** 3
	totalScore += CARD_ORDER.index(hand[1]) * 15 ** 4
	totalScore += CARD_ORDER.index(hand[0]) * 15 ** 5
	return totalScore

hands = []
bids = []

with open(inputFilePath) as inputFile:
	for line in inputFile:
		lineSplit = line.split()
		hand = lineSplit[0]
		bid = lineSplit[1]
		hands.append(hand)
		bids.append(int(bid))

camelCards = list(zip(hands,bids))
camelCards = sorted(camelCards, key=lambda x: (typeSort(x), handSort(x)))

camelScores = []

for camelIndex in range(len(camelCards)):
	scoreMultiplier = camelIndex + 1
	camelCard = camelCards[camelIndex]
	camelScores.append(camelCard[1] * scoreMultiplier)

print(sum(camelScores))

Part 2 v2: https://github.com/porotoman99/Advent-of-Code-2023/blob/main/Day%207/part2v2.py

Code

import os

filePath = os.path.dirname(os.path.realpath(__file__))
inputFilePath = filePath + "\\adventofcode.com_2023_day_7_input.txt"
# inputFilePath = filePath + "\\part1.txt"

CARD_ORDER = "J23456789TQKA"

def typeSort(camelCard):
	cardCount = {}
	for card in CARD_ORDER:
		cardCount[card] = 0
	hand = camelCard[0]
	for card in hand:
		cardCount[card] += 1
	jokerCount = cardCount["J"]
	cardCount["J"] = 0
	cardTotals = list(cardCount.values())
	cardTotals.sort(reverse=True)
	if(cardTotals[0] + jokerCount == 5):
		return 6
	elif(cardTotals[0] + jokerCount == 4):
		return 5
	elif(
		cardTotals[0] + jokerCount == 3 and cardTotals[1] == 2
		or cardTotals[0] == 3 and cardTotals[1] + jokerCount == 2
	):
		return 4
	elif(cardTotals[0] + jokerCount == 3):
		return 3
	elif(
		cardTotals[0] + jokerCount == 2 and cardTotals[1] == 2
		or cardTotals[0] == 2 and cardTotals[1] + jokerCount == 2
	):
		return 2
	elif(cardTotals[0] + jokerCount == 2):
		return 1
	else:
		return 0

def handSort(camelCard):
	totalScore = 0
	hand = camelCard[0]
	totalScore += CARD_ORDER.index(hand[4]) * 15 ** 1
	totalScore += CARD_ORDER.index(hand[3]) * 15 ** 2
	totalScore += CARD_ORDER.index(hand[2]) * 15 ** 3
	totalScore += CARD_ORDER.index(hand[1]) * 15 ** 4
	totalScore += CARD_ORDER.index(hand[0]) * 15 ** 5
	return totalScore

hands = []
bids = []

with open(inputFilePath) as inputFile:
	for line in inputFile:
		lineSplit = line.split()
		hand = lineSplit[0]
		bid = lineSplit[1]
		hands.append(hand)
		bids.append(int(bid))

camelCards = list(zip(hands,bids))
camelCards = sorted(camelCards, key=lambda x: (typeSort(x), handSort(x)))

camelScores = []

for camelIndex in range(len(camelCards)):
	scoreMultiplier = camelIndex + 1
	camelCard = camelCards[camelIndex]
	camelScores.append(camelCard[1] * scoreMultiplier)

print(sum(camelScores))