diff --git a/problems/2026-10-23-max-subarray/solution.js b/problems/2026-10-23-max-subarray/solution.js
index 2fc4dfe..b93efeb 100644
--- a/problems/2026-10-23-max-subarray/solution.js
+++ b/problems/2026-10-23-max-subarray/solution.js
@@ -3,5 +3,12 @@
  * @returns {number}
  */
 export function maxSubArray(nums) {
-  throw new Error("Not implemented");
+  let best = nums[0];
+  let cur = nums[0];
+  for (let i = 1; i < nums.length; i++) {
+    cur = Math.max(nums[i], cur + nums[i]);
+    best = Math.max(best, cur);
+  }
+  return best;
+
 }