算法精粹(algorithm-essentials)

感谢soulmachine@github提供内容
## Valid Palindrome


### 描述

Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.

For example,

`"A man, a plan, a canal: Panama"` is a palindrome.
`"race a car"` is not a palindrome.

Note:
Have you consider that the string might be empty? This is a good question to ask during an interview.

For the purpose of this problem, we define empty string as valid palindrome.


### 分析




### 代码

{% codesnippet "./code/valid-palindrome."+book.suffix, language=book.suffix %}{% endcodesnippet %}


### 相关题目

* [Palindrome Number](palindrome-number.md)