LeetCode题解(Offer31)：判断两个序列是否可能为栈的压入和弹出序列(Python)
题目：原题链接（中等）标签：栈、情景模拟解法时间复杂度空间复杂度执行用时Ans 1 (Python)O(N)O(N)O(N)O(N)O(N)O(N)48ms (60.94%)Ans 2 (Python)O(N)O(N)O(N)O(N)O(N)O(N)52ms (35.79%)Ans 3 (Python)解法一（情景模拟1）：class Solution: def validateStackSequences(self, pushed:
