# -*- coding:utf-8 -*- class Solution: def __init__(self): self.stackA = [] self.stackB = [] def push(self, node): # write code here self.stackA.append(node) #这里应该考虑溢出问题,只是没有相关函数 def pop(self): # return xx if self.stackB: return self.stackB.pop() elif not self.stackA: return None else: while self.stackA: self.stackB.append(self.stackA.pop()) return self.stackB.pop()
剑指offer习题五
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转载自blog.csdn.net/u012693077/article/details/80785339
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