oceane prices

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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.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

Say you has an array for which the i t H 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).Thinking of solving problemsCreate two arrays left and right store the maximum benefits that can be obtained from the left and right sides of an element, respectively. That

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.Solution 1:Find each minimum, find a maximum value after each minimum, and calculate the maximum benefit. Compare each of the maximum benefits. Public classSolution { Public intMaxprofit (int[] prices) { if(

-line city more serious! The entity store has the rent and the staff's salary, most of the computer city, the first floor is notebook and brand machine, 234 floor diy façade monthly rent is about 2W, And on the five floor of the second-hand accessories market, the counter rent as long as 3K or so. We can analyze the location of the 123-line city: First-tier cities: The brand's first-line agent relatively concentrated, abundant supply but the price is extremely sensitive, often a day has two

(array as $value) { $value$value * 2;}? > Using arrays of different indexes In an associative array, you can associate each variable value with any keyword or index.Initialize associative array: $prices = Array (' Tires ' = +, ' oil ' =, ' Spark plugs ' = 4); This allows you to create a product name as a keyword, with a price as a worthy associative array.Access to array elements: You can access the contents of an array using variabl

constructed by returning an array and then using the list () function*/function Functioninfo ($name, $age, $job) {$userInfo is an array$userInfo = Array ($name, $age, $job);$userInfo []= $name;$userInfo []= $age;$userInfo []= $job;return $userInfo;}Call. Print_r () is a function of the output array contents$arr = Functioninfo ("Zhang San", 18, "student");Print_r ($arr);echo "Echo $arr [The first element of the 0];//output arrayecho "List ($xingming, $nianling, $zhiye) = Functioninfo ("Zhang San

The normal "price increase, price decline" in the case of synchronization, there is no need to pay special attention to, should be paid attention to in the "price deviation" situation, the sale of stocks should be particularly analyzed.There is a need to correct a problem that has been overlooked in a price analysis. The real reason for the increase in price increases in addition to the rising price of follow-up funds in a timely manner, the existence and gush of large profit disk is another imp

121. Best time to Buy and Sell Stock Total accepted:115636 Total submissions:313848 Difficulty:easy 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: [71536456- 1 5 7-16 as selling price needs to being larger than buying price)Example 2:Input: [764310this case is0.Idea:

https://oj.leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/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 could complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, engage in multiple transactions for the same time (ie, you must sell the stock before you buy again).Problem Solving Ideas:You can buy and sell multiple times compared to the best tim

Python (data structure and algorithm [3]) and python (advanced tutorial)Maps keys to multiple values in the dictionary. One-click multi-value dictionary d = {'a':[1,2,3], 'b':[4,5]}e = {'a':{1,2,3}, 'b':{4,5}} Availablefrom collections import defaultdictThe default dictionary class is used. One feature of the default dictionary class is to automatically initialize the first value. You only need to pay attention to adding elements. from collections import defaultdictd = defaultdict(list)d['a'].ap

pity that I configure the price to be posted to the physical store to take goods, especially high-end goods, is basically impossible to get, the two or three-line city more serious! The entity store has the rent and the staff's salary, most of the computer city, the first floor is notebook and brand machine, 234 floor diy façade monthly rent is about 2W, And on the five floor of the second-hand accessories market, the counter rent as long as 3K or so. We can analyze the location of the 123-line

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 at the most K.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Credits:Special thanks to @Freezen for adding this problem and creating all test cases.Using local[i][j] means to reach the first day, the most local optimal solution of J transactions, with Global[i][j] to reach the first day, up to

Best Time to Buy and Buy Stock Problem 1: Best Time to Buy and StockSay 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 every one share of the stock), design an algorithm to find the maximum profit. That is, the maximum benefit of one purchase and one sale. Public int maxProfit (int [] prices) {assert

Topicthe best time to buy and sell stocksSuppose there is an array, the first element of which is the price of a given stock in the first day. If you are allowed to complete only one transaction at most (for example, buying and selling a stock), design an algorithm to find out the maximum profit.Sample Examplegive an example of an array [3,2,3,1,2], return 1SolvingThe popular point is to ask for the following number minus the maximum value of the preceding number, and the last and 0 to take 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.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.e. Max Profit = 0.Subscribe to see which comp

First: Test instructions is the stock price of a stock in an array. The first I is the price of the first day. The most profitable. Allowed to buy and sell onceThe problem is to ask for the maximum difference. You can record the minimum value and then, based on the minimum value, find the current maximum difference. Public classSolution { Public intMaxprofit (int[] prices) { if(prices.length==0| | Prices.length==1) { return0;

First, the topic1, examining2. AnalysisGive an array so that you have val1 to buy, and then sell with Val2, to get the most profit.Second, the answer1, Ideas:Method One,The minimum value that is recorded to the current position with the Traverse min;Max records the maximum profit that is obtained when the price of the current array value is sold. Public intMaxprofit (int[] prices) { if(Prices.length ) return0; intMin =

new buyers. If there is a way to sell expensive items to those who are willing to buy at a high price, or to those who just want to buy at a lower price, it would be nice. The policy of giving up uniform pricing and setting different prices for different consumers is called "price discrimination ".For sellers, the most perfect situation is to have the ability to read from every buyer, to know the highest price that everyone is willing to pay, and sel

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