76 lines
1.8 KiB
Python
Executable File
76 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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from random import randrange
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import sys
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L = []
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with open(sys.argv[1], 'r') as f:
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L = f.readlines()
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L = [x.strip() for x in L]
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bags = {}
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for rule in L:
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rL = rule.split(' bags contain ')
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outerbag = rL[0]
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innerbags = rL[1].split(', ')
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innerbagsD = {}
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for bag in innerbags:
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if bag == 'no other bags.':
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continue
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bagL = bag.split(' ')
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bagNum = int(bagL[0])
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bagStr = ' '.join((bagL[1], bagL[2]))
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innerbagsD[bagStr] = bagNum
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bags[outerbag] = innerbagsD
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# part 1
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BAGS = set()
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mybag = 'shiny gold'
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def countbags(bags, mybag):
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for bag in bags:
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if mybag in bags[bag]:
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global BAGS
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BAGS.add(bag)
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countbags(bags, bag)
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countbags(bags, mybag)
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#print(len(BAGS))
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# part 2
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betterbags = {}
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for outerbag in bags:
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betterbags[outerbag] = {}
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for innerbag in bags[outerbag]:
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betterbags[outerbag][innerbag] = {'count': bags[outerbag][innerbag]}
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mybag = 'shiny gold'
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mybags = {'shiny gold': {'count': 1}}
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def buildmybag(mybags, mybag):
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global betterbags
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if isinstance(betterbags[mybag], int):
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mybags[mybag] = {'count': betterbags[mybag]}
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else:
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mybags[mybag].update(betterbags[mybag])
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for bag in mybags[mybag]:
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if bag != 'count':
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buildmybag(mybags[mybag], bag)
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buildmybag(mybags, mybag)
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#print(mybags)
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def countmybags(mybags):
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totalbags = 0
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for bag in mybags:
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if bag == 'count':
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# solution: run once with this uncommented, then run again with it commented out, subtract 2nd number from first then subtract 1 from the result
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# totalbags = (totalbags * mybags['count']) + mybags['count']
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continue
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totalbags += mybags['count'] + mybags['count'] * countmybags(mybags[bag])
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return totalbags
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print(countmybags(mybags[mybag]))
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