How to Solve Best Time to Buy and Sell Stock I I I Problem
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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 transactions. Note: You may not engage...
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Understanding the Best Time to Buy and Sell Stock I I I Problem
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Problem Statement
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 transactions. Note: You may not engage in multiple transactions simultaneously (i.e., you must sell the stock before you buy again).
Best Time to Buy and Sell Stock III
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Examples
prices = [3,3,5,0,0,3,1,4]
6
Buy on day 4 (price = 0) and sell on day 6 (price = 3), profit = 3-0 = 3. Then buy on day 7 (price = 1) and sell on day 8 (price = 4), profit = 4-1 = 3.
prices = [1,2,3,4,5]
4
Buy on day 1 (price = 1) and sell on day 5 (price = 5), profit = 5-1 = 4. Note that you cannot buy on day 1, buy on day 2 and sell them later, as you are engaging multiple transactions at the same time. You must sell before buying again.
prices = [7,6,4,3,1]
0
In this case, no transaction is done, i.e. max profit = 0.
Constraints
1 <= prices.length <= 105
0 <= prices[i] <= 105
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