2017年2月18日
342. 是否为4的平方根Power of Four
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 false.Follow up: Could you solve it without loops/rec... 阅读全文
posted @ 2017-02-18 11:32 xiejunzhao 阅读(240) 评论(0) 推荐(0)