2017年10月24日
leetcode练习：441. Arranging Coins
摘要： You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins. Given n, find the total number 阅读全文
posted @ 2017-10-24 19:40 章鱼小年糕 阅读(124) 评论(0) 推荐(0)
leetcode练习：258. Add Digits & 415. Add Strings
摘要： Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. For example: Given num = 38, the process is like: 阅读全文
posted @ 2017-10-24 19:07 章鱼小年糕 阅读(121) 评论(0) 推荐(0)