feat: 53. Maximum Subarray

Author: gwbaik9717

maximum-subarray/gwbaik9717.js

@@ -0,0 +1,18 @@
+// Time complexity: O(n)
+// Space complexity: O(n)
+
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var maxSubArray = function (nums) {
+  const n = nums.length;
+  const dp = Array.from({ length: n + 1 }, () => Number.MIN_SAFE_INTEGER);
+  dp[0] = 0;
+
+  for (let i = 1; i <= n; i++) {
+    dp[i] = Math.max(dp[i - 1] + nums[i - 1], nums[i - 1]);
+  }
+
+  return Math.max(...dp.slice(1));
+};