30 lines
655 B
Python
30 lines
655 B
Python
import os
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f = open(os.path.dirname(__file__)+"/input.txt", "r")
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tot = 0
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tot2 = 0
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priorities = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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rucksacks = f.read().splitlines()
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f.close()
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for data in rucksacks:
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left = data[:len(data)//2]
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right = data[len(data)//2:]
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common = ''.join(set(left) & set(right))
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tot += priorities.rfind(common)+1
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print("First answer: " + str(tot))
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start = 0
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end = len(rucksacks)
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step = 3
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for i in range(start, end, step):
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three = rucksacks[i:i+step]
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common = ''.join(set(three[0]) & set(three[1]) & set(three[2]))
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tot2 += priorities.rfind(common)+1
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print("Second answer: " + str(tot2))
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