摘要：
Given a non-negative index k where k ≤ 33, return the kth index row of the Pascal's triangle. Note that the row index starts from 0. In Pascal's trian 阅读全文
posted @ 2014-10-17 16:52
Grandyang
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摘要：
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Pa 阅读全文
posted @ 2014-10-17 04:09
Grandyang
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