23 lines
851 B
Python
23 lines
851 B
Python
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import re
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with open('input18', 'r') as file:
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input = [l.strip() for l in file.readlines()]
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class fakeInt(int): # We already have a perfectly good parser, no need to write our own :D
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def __add__(self, other): # If we don't define this we get regular ints which don't follow our made-up rules
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return fakeInt(int.__add__(self, other))
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def __sub__(self, other):
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return fakeInt(int.__mul__(self, other))
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result = sum([eval(re.sub('(\d+)', r'fakeInt(\1)', line.replace('*','-'))) for line in input])
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print(f'Part 1: {result}')
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class fakeInt2(int):
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def __mul__(self, other):
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return fakeInt2(int.__add__(self, other))
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def __sub__(self, other):
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return fakeInt2(int.__mul__(self, other))
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result = sum([eval(re.sub('(\d+)', r'fakeInt2(\1)', line.replace('*','-').replace('+','*'))) for line in input])
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print(f'Part 2: {result}')
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