My Advent of Code solutions in Python.
kevinyap.ca/2019/12/going-fast-in-advent-of-code/
advent-of-code
python
Add solution for 2024/02
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+22
2024/day02.py
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2024/day02.py
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import fileinput
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def is_safe(levels):
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increasing = all((a < b) for a, b in zip(levels, levels[1:]))
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decreasing = all((a > b) for a, b in zip(levels, levels[1:]))
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good_deltas = all((abs(a - b) <= 3) for a, b in zip(levels, levels[1:]))
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return (increasing or decreasing) and good_deltas
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def gen_part_2(levels):
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yield levels
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for i in range(len(levels)):
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yield levels[:i] + levels[i+1:]
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reports = []
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for line in fileinput.input():
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reports.append([int(n) for n in line.split()])
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print("Part 1:", sum(is_safe(r) for r in reports))
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print("Part 2:", sum(any(is_safe(r) for r in gen_part_2(report)) for report in reports))