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摘要: 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, return fa 阅读全文
posted @ 2017-10-21 22:58 hellowOOOrld 阅读(158) 评论(0) 推荐(0) 编辑