342. Power of Four
摘要：
1. 问题描述 Given an integer (signed 32 bits), write a function to check whether it is a power of 4. Example:Given num = 16, return true. Given num = 5, r 阅读全文
posted @ 2016-07-17 22:09 whl-hl 阅读(277) 评论(0) 推荐(0)
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