买卖股票的最大收益 II 122. Best Time to Buy and Sell Stock II (Easy) 题目描述:   可以进行多次交易,多次交易之间不能交叉进行,可以进行多次交易. 思路分析:   当访问到一个prices[i]且prices[i]-prices[i-1]>0,那么就把prices[i]-prices[i-1]添加到收益中. 代码: public int maxProfit(int []prices){ int profit=0; for(int i=1;i<…

I 假设有一个数组,它的第i个元素是一支给定的股票在第i天的价格.如果你最多只允许完成一次交易(例如,一次买卖股票),设计一个算法来找出最大利润. II 假设有一个数组,它的第i个元素是一个给定的股票在第i天的价格.设计一个算法来找到最大的利润.你可以完成尽可能多的交易(多次买卖股票).然而,你不能同时参与多个交易(你必须在再次购买前出售股票). III 假设你有一个数组,它的第i个元素是一支给定的股票在第i天的价格.设计一个算法来找到最大的利润.你最多可以完成两笔交易. 样例 给出一个样例数组…

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 (i.e., buy one and sell one share of the stock multiple times).…

给定一个数组,它的第 i 个元素是一支给定股票第 i 天的价格. 设计一个算法来计算你所能获取的最大利润.你可以尽可能地完成更多的交易(多次买卖一支股票). 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). 示例 1: 输入: [7,1,5,3,6,4] 输出: 7 解释: 在第 2 天(股票价格 = 1)的时候买入,在第 3 天(股票价格 = 5)的时候卖出, 这笔交易所能获得利润 = 5-1 = 4.随后,在第 4 天(股票价格 = 3)的时候买入,在第 5 天(股票价格…

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 (i.e…

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) wit…

买卖股票的最佳时机 IV 假设你有一个数组,它的第i个元素是一支给定的股票在第i天的价格. 设计一个算法来找到最大的利润.你最多可以完成 k 笔交易. 注意事项 你不可以同时参与多笔交易(你必须在再次购买前出售掉之前的股票) 样例 给定价格 = [4,4,6,1,1,4,2,5], 且 k = 2, 返回 6. 解题 根据上面几题的思想:考虑定义一个数组A,A[i][j] 表示 i 天 买,j天卖,同时只保存A[i][j] >=0 的情况,为了防止重复,数组只考虑上三角 (i<=j)的情况 下…

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. Exam…

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 k transactions. Note:You may not engage in multiple transactions at the same time (ie, yo…

Best Time to Buy and Sell Stock II 题目等级:Easy 题目描述: 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 (i.e., buy on…