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| package com.demo.s123;
public class Solution { public int maxProfit(int[] prices) { int n = prices.length; int buy1 = -prices[0], sell1 = 0; int buy2 = -prices[0], sell2 = 0; for (int i = 1; i < n; ++i) { buy1 = Math.max(buy1, -prices[i]); sell1 = Math.max(sell1, buy1 + prices[i]); buy2 = Math.max(buy2, sell1 - prices[i]); sell2 = Math.max(sell2, buy2 + prices[i]); } return sell2; } }
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