[HAI] week3 backspace max solution

https://leetcode.com/problems/backspace-string-compare/submissions/1473739645/

lib/backspaceCompare/backspaceCompare.test.ts

@@ -0,0 +1,26 @@
+import { describe, it, expect } from "vitest";
+import { backspaceCompare } from "./backspaceCompare.ts";
+
+describe("backspaceCompare", () => {
+
+  it("ab#c, ad#c => true", () => {
+    expect(backspaceCompare("ab#c", "ad#c")).toBeTruthy();
+  });
+
+  it("ab##, c#d# => true", () => {
+    expect(backspaceCompare("ab##", "c#d#")).toBeTruthy();
+  });
+
+  it("a#c, b => false", () => {
+    expect(backspaceCompare("a#c", "b")).toBeFalsy();
+  });
+
+  it("bxj##tw, bxj###tw => false", () => {
+    expect(backspaceCompare("bxj##tw", "bxj###tw")).toBeFalsy();
+  });
+
+  it("nzp#o#g, b#nzp#o#g => true", () => {
+    expect(backspaceCompare("nzp#o#g", "b#nzp#o#g")).toBeTruthy();
+  });
+});
+