【Everyday】(3)最后一个单词的长度 - Everyday - SegmentFault


【Everyday】(3)最后一个单词的长度 - Everyday - SegmentFault

给定一个字符串， 包含大小写字母、空格' '，请返回其最后一个单词的长度。

如果不存在最后一个单词，请返回 0 。

样例
给定 s = "Hello World"，返回 5


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