23 lines
753 B
Python
23 lines
753 B
Python
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import aocd
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def parse_reports(data):
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for line in data.split('\n'):
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yield [int(level) for level in line.split()]
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def is_safe(orig_report):
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modified = [orig_report[:i] + orig_report[i+1:] for i in range(len(orig_report))]
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for report in [orig_report] + modified:
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pairs = list(zip(report[:-1], report[1:]))
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diffs = [a-b for a,b in pairs]
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if all(diff in (1, 2, 3) for diff in diffs) or all(diff in (-1, -2, -3) for diff in diffs):
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return True
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return False
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def solve(data):
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return sum(is_safe(report) for report in parse_reports(data))
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if __name__ == '__main__':
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solution = solve(aocd.get_data(year=2024, day=2))
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print(solution)
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aocd.submit(solution, year=2024, day=2, part='b')
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