21 lines
658 B
Python
21 lines
658 B
Python
type Report = tuple[int, ...]
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type ReportList = list[Report]
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def parse(filename: str) -> ReportList:
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report_list: ReportList = []
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with open(filename) as f:
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while line := f.readline().strip("\n"):
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report: Report = tuple(int(digit) for digit in line.split())
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report_list.append(report)
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return report_list
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def is_safe(report: Report) -> bool:
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if not (report == tuple(sorted(report)) or report == tuple(sorted(report, reverse=True))):
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return False
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for i, value in enumerate(report[:-1]):
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if abs(value - report[i + 1]) > 3 or value == report[i + 1]:
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return False
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return True
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