51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
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#!/bin/python3
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import sys,re
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from pprint import pprint
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sys.path.insert(0, '../../')
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from fred import list2int,get_re,nprint,lprint
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input_f = 'input'
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part = 2
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#########################################
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# #
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# Part 1 #
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# #
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#########################################
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result = 0
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if part == 1:
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with open(input_f) as file:
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for line in file:
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for i in re.findall(r"(mul\((\d+),{1}(\d+)\))",line.rstrip()):
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result += (int(i[1])*int(i[2]))
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print(result)
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#########################################
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# #
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# Part 2 #
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# #
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#########################################
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result = 0
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do = True
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if part == 2:
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with open(input_f) as file:
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for line in file:
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matches = re.findall(r"mul\(\d+,\d+\)|do\(\)|don't\(\)",line.rstrip())
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for match in matches:
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if match == 'do()':
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do = True
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elif match == "don't()":
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do = False
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else:
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if do:
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m = get_re(r"mul\((\d+),{1}(\d+)\)",match)
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result += (int(m.group(1))*int(m.group(2)))
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print(result)
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# Not really happy with my code. I would prefer to find all mul(x,y) between do() and don't(),
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# instead of finding all the mul/do/don't and then turning calculation on/off.
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#(do\(\).*?mul\((\d+),{1}(\d+)\))
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