摘要： 题目： Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transac 阅读全文

摘要： 题目： Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3,Return [1,3,3,1]. 链接： http://leetcode.com/problems/pascals 阅读全文