mirror of
https://github.com/thib8956/advent-of-code.git
synced 2024-12-26 13:56:29 +00:00
34 lines
954 B
Python
34 lines
954 B
Python
def parse_input(infile):
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with open(infile) as f:
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return [[int(x) for x in l.strip().split()] for l in f.readlines()]
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def process_line(line):
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if set(line) == {0}:
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return 0
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else:
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next_line = [cur - next for next, cur in zip(line, line[1:])]
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return line[-1] + process_line(next_line)
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def process_line_back(line):
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if set(line) == {0}:
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return 0
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else:
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next_line = [cur - next for next, cur in zip(line, line[1:])]
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return line[0] - process_line_back(next_line)
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def solve(data):
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print(f"Part 1: {sum(process_line(l) for l in data)}")
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print(f"Part 2: {sum(process_line_back(l) for l in data)}")
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if __name__ == "__main__":
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import sys
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import os
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SCRIPTPATH = os.path.dirname(os.path.realpath(__file__))
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infile = sys.argv[1] if len(sys.argv) == 2 else "example.txt"
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data = parse_input(os.path.join(SCRIPTPATH, infile))
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solve(data)
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