是之前两道题leetcode Best Time to Buy and Sell Stock和leetcode Best Time to Buy and Sell Stock II的加强版。 这里要求只能买两次股票。 做了一个多小时,试了好多次,终于AC了。 思路:找到有可能为断点的地方,也就是出现递减的地方,递减了就说明有损失所以有可能卖出。 对每个可能的分割点,计算左右两边...
Note: You may not engage in multiple transactions at the same time (i.e., you must sell the stock before you buy again). Example 1: Input: [3,3,5,0,0,3,1,4] Output: 6 Explanation: Buy on day 4 (price = 0) and sell on day 6 (price = 3), profit = 3-0 = 3. Then ...
Can you solve this real interview question? Best Time to Buy and Sell Stock III - You are given an array prices where prices[i] is the price of a given stock on the ith day. Find the maximum profit you can achieve. You may complete at most two transacti
123. Best Time to Buy and Sell Stock III 参考了别人的思想,大概是两重动态规划问题,一个值记录前i天profit最大值,另一个值记录i天以后最大值,两者合一即为最大买买次数为2的时候的最大值。代码如下:...123. Best Time to Buy and Sell Stock III 这道题用自己的笨方法超时,想到用dp但是不知道...
Leetcode--Best Time to Buy and Sell Stock III Problem Description: Say you have an array for which theithelement is the price of a given stock on dayi. Design an algorithm to find the maximum profit. You may complete at mosttwotransactions....
Say you have an array for which theithelement is the price of a given stock on dayi. Design an algorithm to find the maximum profit. You may complete at mosttwotransactions. Note: You may not engage in multiple transactions at the same time (ie, you must sell the stock before you bu...
Input:[7,6,4,3,1]Output:0 Explanation 在这个例子中,没有交易做成因为最大利润是零 C++输入格式 classSolution{public:intmaxProfit(vector<int>&prices){}}; 范例 子函数 classSolution{public:intmaxProfit(vector<int>&prices){if(prices.size()<=1)return0;else{intK=2;// number of max transation...
LeetCode.jpg 123. 买卖股票的最佳时机 III 123. 买卖股票的最佳时机 III 给定一个数组,它的第 i 个元素是一支给定的股票在第 i 天的价格。 设计一个算法来计算你所能获取的最大利润。你最多可以完成 两笔 交易。 注意: 你不能同时参与多笔交易(你必须在再次购买前出售掉之前的股票)。
这道题是Best Time to Buy and Sell Stock的扩展,现在我们最多可以进行两次交易。我们仍然使用动态规划来完成,事实上可以解决非常通用的情况,也就是最多进行k次交易的情况。 这里我们先解释最多可以进行k次交易的算法,然后最多进行两次我们只需要把k取成2即可。我们还是使用“局部最优和全局最优解法”。我们维护...
Say you have an array for which theith element is the price of a given stock on dayi. Design an algorithm to find the maximum profit. You may complete at mosttwotransactions. Note: You may not engage in multiple transactions at the same time (ie, you must sell the stock before you ...