directory
Version:
v0.0.0-...-9b92ec5
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Published: Jan 3, 2021
License: MIT
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README
¶
给定一个字符串,验证它是否是回文串,只考虑字母和数字字符,可以忽略字母的大小写。
**说明:**本题中,我们将空字符串定义为有效的回文串。
示例 1:
**输入:** "A man, a plan, a canal: Panama" **输出:** true
示例 2:
**输入:** "race a car" **输出:** false
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