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Problem Definition:Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3,Return [1,3,3,1].Note:Could you optimize yo... 阅读全文
posted @ 2015-07-21 20:13
曾可爱
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Problem Definition:Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5,Return[ [1], [1,1], [1,2,1]... 阅读全文
posted @ 2015-07-21 20:11
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Problem Definition:Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example,"A man, a... 阅读全文
posted @ 2015-07-21 11:33
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