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?=
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---
 ...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) {