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[LintCode] Best Time to Buy and Sell Stock 买卖股票的最佳时间

 

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 transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit.

Have you met this question in a real interview? 
Yes
Example

Given array [3,2,3,1,2], return 1.

 

 

 

 

[LintCode] Best Time to Buy and Sell Stock 买卖股票的最佳时间