摘要: examination questionsUsing O(1) time to check whether an integer n is a power of 2.ExampleFor n=4, return true;For n=5, return false;ChallengeO(1) tim... 阅读全文
posted @ 2015-05-27 10:59 TabWeng 阅读(202) 评论(0) 推荐(0) 编辑