41 lines
829 B
Python
41 lines
829 B
Python
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""" day2 part 1 """
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import fileinput
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count = 0
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def is_safe(report):
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prev = report[0]
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direction = None
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safe = True
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for item in report[1:]:
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delta = item - prev
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print(direction,delta)
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if delta == 0 or delta > 3 or delta < -3:
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print(f'unsafe (delta={delta})')
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safe = False
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break
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if (direction is not None) and ((delta > 0) != (direction > 0)):
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print(f'unsafe (delta={delta} dir={direction})')
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safe = False
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break
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direction = delta
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prev = item
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return safe
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def remove_one(report):
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for i in range(len(report)):
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yield report[:i] + report[i+1:]
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for line in fileinput.input():
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report = [int(x) for x in line.split()]
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if is_safe(report):
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count += 1
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print(count)
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