46 lines
1.2 KiB
Python
46 lines
1.2 KiB
Python
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#!/bin/python
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# faded blue bags contain 0 other bags.
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# dotted black bags contain 0 other bags.
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# vibrant plum bags contain 11 other bags: 5 faded blue bags and 6 dotted black bags.
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# dark olive bags contain 7 other bags: 3 faded blue bags and 4 dotted black bags.
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# shiny gold bags contain 3 other bags: 1 dark olive bag and 2 vibrant plume bags
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# 7 + 2*11
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def check(bag, rules):
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result = 0
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for needed_bag, amount in rules[bag].items():
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if rules[needed_bag] == {}:
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result += amount
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else:
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result += amount + amount * check(needed_bag, rules)
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return result
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# $color bags contain {$number $color bags,}*x
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# color: {colors}
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with open("input", 'r') as input:
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rules = {}
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for line in input:
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line = line.strip()
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parts = line.split(" bags contain ")
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key = parts[0]
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value = {}
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parts = parts[1].strip(".").split(", ")
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for part in parts:
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if part == "no other bags":
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break;
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bag_parts = part.split(" ", 1)
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value[bag_parts[1].replace("bags", "").replace("bag", "").strip()] = int(bag_parts[0])
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rules[key] = value
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print(check("shiny gold", rules))
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