34 lines
642 B
Python
34 lines
642 B
Python
class QueueError(Exception):
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pass
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class Queue:
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def __init__(self):
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self.__queue_list = []
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def put(self, val):
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self.__queue_list.insert(0, val)
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def get(self):
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if len(self.__queue_list) < 1:
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raise QueueError("Errore di coda")
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return self.__queue_list.pop()
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class SuperQueue(Queue):
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def __init__(self):
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Queue.__init__(self)
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def isempty(self):
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return len(self._Queue__queue_list) == 0
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que = SuperQueue()
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que.put(1)
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que.put("cane")
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que.put(False)
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for i in range(4):
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if not que.isempty():
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print(que.get())
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else:
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print("Coda vuota") |