26 lines
573 B
Python
26 lines
573 B
Python
state = {}
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def detect_anomaly(name: str, action: str) -> str:
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global state
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try:
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if state[name] == action:
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return " (ANOMALY)"
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except KeyError:
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if action == "exit":
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return " (ANOMALY)"
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return ""
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def print_log(name: str, action: str) -> None:
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paction = "entered" if action == "entry" else "exited"
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print(f"{name} {paction}{detect_anomaly(name, action)}")
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n = int(input())
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for _ in range(n):
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action, name = input().split()
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print_log(name, action)
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state[name] = action
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