2015年11月19日
leetcode happy number
摘要： Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive integer... 阅读全文
posted @ 2015-11-19 17:40 0giant 阅读(198) 评论(0) 推荐(0)
leetcode 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 cli... 阅读全文
posted @ 2015-11-19 15:24 0giant 阅读(128) 评论(0) 推荐(0)