019f8fd211
git-subtree-dir: users/wpcarro git-subtree-mainline:464bbcb15cgit-subtree-split:24f5a642afChange-Id: I6105b3762b79126b3488359c95978cadb3efa789
17 lines
439 B
Python
17 lines
439 B
Python
class Queue(object):
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def __init__(self):
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self.lhs = []
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self.rhs = []
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def enqueue(self, x):
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self.lhs.append(x)
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def dequeue(self):
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if self.rhs:
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return self.rhs.pop()
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while self.lhs:
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self.rhs.append(self.lhs.pop())
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if self.rhs:
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return self.rhs.pop()
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else:
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raise Exception("Attempting to remove an item from an empty queue")
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