2015年10月2日
Climbing Stairs
摘要： You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you c... 阅读全文
posted @ 2015-10-02 23:00 chaha 阅读(109) 评论(0) 推荐(0) 编辑
First Bad Version
摘要： You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality c... 阅读全文
posted @ 2015-10-02 18:01 chaha 阅读(143) 评论(0) 推荐(0) 编辑