From 9b9adf6100bb2d8b3e2703b5f573af05a8890d15 Mon Sep 17 00:00:00 2001 From: eat to 160 pounds <2915390277@qq.com> Date: Sat, 13 Jul 2024 15:10:24 +0800 Subject: [PATCH] =?UTF-8?q?feat(0309):=20=E5=8F=A6=E4=B8=80=E7=A7=8D?= =?UTF-8?q?=E7=8A=B6=E6=80=81=E5=AE=9A=E4=B9=89=E6=80=9D=E8=B7=AF?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...09.最佳买卖股票时机含冷冻期.md | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/problems/0309.最佳买卖股票时机含冷冻期.md b/problems/0309.最佳买卖股票时机含冷冻期.md index 5a38111a..95689a48 100644 --- a/problems/0309.最佳买卖股票时机含冷冻期.md +++ b/problems/0309.最佳买卖股票时机含冷冻期.md @@ -359,6 +359,26 @@ func max(a, b int) int { ### Javascript: +> 不同的状态定义 感觉更容易理解些 +```javascript +function maxProfit(prices) { + // 第i天状态 持股 卖出 非冷冻期(不持股) 处于冷冻期 + const dp = new Array(prices.length).fill(0).map(() => [0, 0, 0, 0]); + dp[0][0] = -prices[0]; + for (let i = 1; i < prices.length; i++) { + // 持股 + dp[i][0] = Math.max(dp[i - 1][0], dp[i - 1][2] - prices[i]); + // 卖出 + dp[i][1] = dp[i - 1][0] + prices[i]; + // 非冷冻期(不持股) + dp[i][2] = Math.max(dp[i - 1][2], dp[i - 1][1]); + // 冷冻期(上一天卖出) + dp[i][3] = dp[i - 1][1]; + } + return Math.max(...dp.pop()); +}; +``` + ```javascript const maxProfit = (prices) => { if(prices.length < 2) {