add js solution for maxProfit IV

This commit is contained in:
Qi Jia
2021-07-09 20:10:06 -07:00
committed by GitHub
parent a9344c2f94
commit 3cff2bbe83

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@ -230,6 +230,31 @@ class Solution:
Go
Javascript
```javascript
const maxProfit = (k,prices) => {
if (prices == null || prices.length < 2 || k == 0) {
return 0;
}
let dp = Array.from(Array(prices.length), () => Array(2*k+1).fill(0));
for (let j = 1; j < 2 * k; j += 2) {
dp[0][j] = 0 - prices[0];
}
for(let i = 1; i < prices.length; i++) {
for (let j = 0; j < 2 * k; j += 2) {
dp[i][j+1] = Math.max(dp[i-1][j+1], dp[i-1][j] - prices[i]);
dp[i][j+2] = Math.max(dp[i-1][j+2], dp[i-1][j+1] + prices[i]);
}
}
return dp[prices.length - 1][2 * k];
};
```
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