11 lines
420 B
Python
Executable File
11 lines
420 B
Python
Executable File
with open("b.txt", "r") as file:
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num_this = 0
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is_subsequence = True
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lines = file.readlines()
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num_prev = int(lines[0].replace("\n", ""))
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for i in range(1, len(lines)):
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num_this = int(lines[i].replace("\n", ""))
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is_subsequence = ((num_prev>0)and(num_this<0))or((num_prev<0)and(num_this>0))and(is_subsequence)
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num_prev = int(lines[i].replace("\n", ""))
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print(is_subsequence) |