发布时间：2014-09-16 17:27:04
Say you have an array for which the ith element is the price of a given stock on day i.Design an algorithm to find the maximum profit. You may complete at most two transactions.Note:You may not engage in multiple transactions at the same time (ie, you must sell th.........【阅读全文】
发布时间：2014-09-16 15:57:01
A message containing letters from A-Z is being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message containing digits, determine the total number of ways to decode it.For example,Given encoded message "12", it could be dec.........【阅读全文】
