diff --git a/README.md b/README.md
index 1c8d6ead..1afadc35 100644
--- a/README.md
+++ b/README.md
@@ -142,6 +142,8 @@ https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/
 
 https://leetcode-cn.com/problems/add-two-numbers/
 
+https://leetcode-cn.com/problems/maximum-subarray/
+
 #### 安装教程
 
 1. 安装`deno`
diff --git a/add-two-numbers/index.ts b/add-two-numbers/index.ts
index f623e410..83b8461f 100644
--- a/add-two-numbers/index.ts
+++ b/add-two-numbers/index.ts
@@ -14,7 +14,7 @@ import { ListNode } from "../reverse-linked-list/ListNode.ts";
 
 export default function addTwoNumbers(
     l1: ListNode | null,
-    l2: ListNode | null
+    l2: ListNode | null,
 ): ListNode | null {
     if (!l1) return l2;
     if (!l2) return l1;
diff --git a/maximum-subarray/index.ts b/maximum-subarray/index.ts
new file mode 100644
index 00000000..27387cf9
--- /dev/null
+++ b/maximum-subarray/index.ts
@@ -0,0 +1,10 @@
+export default function maxSubArray(nums: number[]): number {
+    let max = nums[0];
+    const dp = [nums[0]];
+    for (let i = 1; i < nums.length; i++) {
+        dp[i] = Math.max(dp[i - 1] + nums[i], nums[i]);
+        max = Math.max(max, dp[i]);
+    }
+    // const dp=nums.map((v,i,a)=>i===0?nums[0]:Math.max(v,v+(dp[i-1]||0)))
+    return max;
+}