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Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.Example 1:Input: [7, 1, 5, 3, 6, 4]output:5max. difference = 6-1 = 5 (Not 7-1 = 6, as selling-price needs-be-larger than buying price)Example 2:Input: [7, 6, 4, 3, 1]output:0in this case, no transaction was done, i.

First, the topic1, examining2. AnalysisGiven an array of daily prices for a stock, you can trade multiple times to find out how big the profit is.Second, the answer1, Ideas:Method One,Seek the maximum profit, from the back to the front, if the current price to sell, the day before the price of buy, you can complete the transaction, and gain profits. Finally, all profits can be counted. Public int maxProfit11 (int[] prices) { int total = 0;

Update Leetcode to solve Java answers on a regular basis.Choose from the pick one approach.Test instructions to allow only one sale, the given array is the price of the item of the day, ask the maximum benefit is how much.Obviously the best way to get the most benefit is to iterate through the array, and in the process of traversal, the price of each day is read, and it is compared with the minimum value obtained by the preceding traversal, which is the maximum benefit to

From: http://blog.csdn.net/zhangking/archive/2008/08/28/2845952.aspx Many people turn their life into a single business, which is actually nothing bad. If you have any interest, you may face it with a smile and turn a blind eye to it. After making money, you can beat your ass and leave without anyone else. It's simple and direct, and it's more reassuring than the curved ones. ProgramDo not just write your headCodeAnd learn to sell yourself. Otherw

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1.ref:http://blog.csdn.net/linhuanmars/article/details/23164149The difference is that it can be traded infinitely many times (of course we know that the deal will not exceed n-1 times, that is, every day we sell first and buy it). Since there is no limit to the number of transactions, we can see that we can get the maximum profit if we trade for a two-day spread greater than 0. So the algorithm is actually adding up all the spreads greater than 0 can

Topic:Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.Analysis: One-dimensional dynamic programming (hard counting is OK)Dp[i] is the maximum profit for the [0,1,2...i] interval, the one-dimensional dynamic programming equation for the problem is as followsDP[I+1

Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. Transactions. (Stock trading , up to two times)Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Class Solution {public: int maxprofit (vector　　Up to two stock trades-best time to Buy and Sell stock III

Question:Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. You are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Analysis:Problem Description: Gives an array of integers, where the I element represents the stock price of day I.Design a program to find the maximum profit, up to two

Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.Simple dynamic programming problem, but at first I didn't read the meaning of the topic. The buy here should of course be before the sale, so that is not the kind to take a max a min subtraction can be solved, the c

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Topic:Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.Analytical:Greedy method, find the lowest and highest price of the day, the low into the higher, note the lowest day before the highest day.Turning the original price sequence into a differential sequence, the

Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.The subject only needs to be traversed once, maintaining two pointers, one pointing to the lowest price before I, one pointing to the lowest price, and the highest price before I, if prices[i] is higher than high, t

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Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.Topic Analysis:When doing, want to use dynamic planning to do, at that time do not write a better expression of the recursive style. Because there is a relationship between the maximum value and the minimum value: W

188 best time to Buy and Sell Stock IVThis question is the best I've ever had to look at the way I've run out of all the Python solutions.classSolution:def __init__(self): Self.start=0 Self.end=0 Self.ans=0 SELF.P= [] defMaxprofit (self, k, prices): I= 1ifLen (prices) : return0 whileI Len (Prices): Self.p.append (Prices[i]-Prices[i-1]) I+ = 1ifK >=Len (SELF.P):returnSUM ([x forXinchSelf.pifX >0]) J=0 whileJ K:ret=Self.getprofit ()ifR

Topic:Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. You are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Ideas:1. The transaction is similar to the practice of trading once, simply split the array into two arrays, and then calculate the maximum value of two array transactions

Say you had an array for which the ith element was the price of a given stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.This is very intuitive, the direct difference between the highest value on the line, the start of the tle once, because the use of O (n^2)method, and later found O (n) to be able.The first code:classSolution { Publi

Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.First, the problem is converted to a mathematical language: array a[n], and for any i The results can be obtained using O (n^2) method.The following dynamic planning methods are analyzed:For input prices[n], if know