2017年4月14日
【Leetcode441--数学】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 @ 2017-04-14 15:45 hudiwei-hdw 阅读(218) 评论(0) 推荐(0) 编辑