前言:最近快到FDS考试了,po重刷了一下学校的题目,自己整理了一些解析orz 因为po在自己找解析和学习的过程中非常痛苦,所以在此共享一下我的题目和自己写的解题思路,欢迎各位指出错误~全章节预计会陆续更新,可在专栏查看~
HW3
1. Push 5 characters ooops onto a stack. In how many different ways that we can pop these characters and still obtain ooops?
5种:123,132,231,213,321
2. Represent a queue by a singly linked list. Given the current status of the linked list as 1->2->3 where x->y means y is linked after x

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