2015年2月6日

Reverse Words in a String II

摘要： Given an input string, reverse the string word by word. A word is defined as a sequence of non-space characters.The input string does not contain lead... 阅读全文

posted @ 2015-02-06 15:57 Step-BY-Step 阅读(294) 评论(0) 推荐(0) 编辑

Repeated DNA Sequences

摘要： All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes useful to ... 阅读全文

posted @ 2015-02-06 15:41 Step-BY-Step 阅读(407) 评论(0) 推荐(0) 编辑

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