LeetCode122:Best Time to Buy and Sell Stock II

Posted claireyuancy

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了LeetCode122:Best Time to Buy and Sell Stock II相关的知识,希望对你有一定的参考价值。

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 as many transactions as you like (ie, buy one and sell one share of the stock multiple times). However, you may not engage in multiple transactions at the same time (ie, you must sell the stock before you buy again).

Hide Tags Array Greedy

这能够说是股票交易中比較简单的一种情况了。
从一个时间点開始算起,仅仅要接下来一天的价格大于当天的价格,就进行一笔买卖。这样求出这些天全部的差价和就是最大的收益。
看了Hide Tags的提示发现这事实上是一种贪婪思想。由于正好局部最优解就是全局最优解,所以能够用贪婪算法解题。


runtime:10ms

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        int length=prices.size();
        int result=0;
        if(length<2)
        return result;

        for(int i=1;i<length;i++)
        {
            result+=max(prices[i]-prices[i-1],0);
        }
        return result;
    }
};



以上是关于LeetCode122:Best Time to Buy and Sell Stock II的主要内容,如果未能解决你的问题,请参考以下文章

leetcode-122. Best Time to Buy and Sell Stock II

LeetCode OJ 122. Best Time to Buy and Sell Stock II

Java [Leetcode 122]Best Time to Buy and Sell Stock II

122. Best Time to Buy and Sell Stock leetcode解题笔记

[LeetCode]题解(python):122-Best Time to Buy and Sell Stock II

LeetCode122:Best Time to Buy and Sell Stock II