2016年10月27日
70. Climbing Stairs QuestionEditorial Solution
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 yo... 阅读全文
posted @ 2016-10-27 23:04 N3verL4nd 阅读(145) 评论(0) 推荐(0)