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标题:Pascal's Triangle II通过率:29.8%难度:简单Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you ... 阅读全文
posted @ 2015-01-21 10:51
pku_smile
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标题:Valid Palindrome通过率:21.9%难度:简单Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For exam... 阅读全文
posted @ 2015-01-21 09:59
pku_smile
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