摘要: 一、题目 Given an integer, write a function to determine if it is a power of three. Example 1: Example 2: Example 3: Example 4: Follow up:Could you do it 阅读全文
posted @ 2018-06-21 16:08 peggyhao 阅读(86) 评论(0) 推荐(0) 编辑