[HAI] week3 max area

https://leetcode.com/problems/container-with-most-water/description/?source=submission-ac

lib/maxArea/maxArea.test.ts

@@ -0,0 +1,13 @@
+import { describe, it, expect } from "vitest";
+import { maxArea } from "./maxArea.ts";
+
+describe("maxArea", () => {
+
+  it("[1,8,6,2,5,4,8,3,7] => 49", () => {
+    expect(maxArea([1, 8, 6, 2, 5, 4, 8, 3, 7])).toBe(49);
+  });
+
+  it("[1,1] => 1", () => {
+    expect(maxArea([1, 1])).toBe(1);
+  });
+});