添加0309.最佳买卖股票时机含冷冻期和Java版本

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wzs
2021-05-12 23:24:54 +08:00
parent 4c3b4d8e5e
commit cbc7efa1b2

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@ -159,9 +159,33 @@ public:
## 其他语言版本
Java
```java
class Solution {
public int maxProfit(int[] prices) {
if (prices == null || prices.length < 2) {
return 0;
}
int[][] dp = new int[prices.length][2];
// bad case
dp[0][0] = 0;
dp[0][1] = -prices[0];
dp[1][0] = Math.max(dp[0][0], dp[0][1] + prices[1]);
dp[1][1] = Math.max(dp[0][1], -prices[1]);
for (int i = 2; i < prices.length; i++) {
// dp公式
dp[i][0] = Math.max(dp[i - 1][0], dp[i - 1][1] + prices[i]);
dp[i][1] = Math.max(dp[i - 1][1], dp[i - 2][0] - prices[i]);
}
return dp[prices.length - 1][0];
}
}
```
Python