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[LeetCode] Best Time to Buy and Sell Stock

时间:2014-07-26 01:23:26      阅读:229      评论:0      收藏:0      [点我收藏+]

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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.

 

class Solution {
public:
    int maxProfit(vector<int> &prices) {
        int profit=0,minPrice;
        int len = prices.size();
        if(len<=1)
           return 0;
         minPrice = prices[0];  
           for(int i=1;i<len;i++)
           {
               minPrice = min(minPrice,prices[i]);
               profit   = max(profit,prices[i]-minPrice);
               
           }
        return profit;
    }
};

Really neat solution! 保证了minPrice 是卖之前得到的。

[LeetCode] Best Time to Buy and Sell Stock,布布扣,bubuko.com

[LeetCode] Best Time to Buy and Sell Stock

标签:des   style   blog   color   os   io   for   re   

原文地址:http://www.cnblogs.com/Xylophone/p/3868945.html

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