feat: add houseRobber implementation (#1282)

Dynamic-Programming/Sliding-Window/test/HouseRobber.test.js

@@ -0,0 +1,20 @@
+import { houseRobber } from '../HouseRobber'
+
+describe('houseRobber', () => {
+  it('expects to return 0 when argument is empty array', () => {
+    expect(houseRobber([])).toBe(0)
+  })
+
+  it('expects to return element at index 0 when argument is array of length one', () => {
+    expect(houseRobber([9])).toBe(9)
+  })
+
+  it('expects to return greater number when argument is an array of length two', () => {
+    expect(houseRobber([3, 6])).toBe(6)
+  })
+
+  it('expects to return the maximum loot possible', () => {
+    expect(houseRobber([1, 2, 3, 1])).toBe(4)
+    expect(houseRobber([2, 7, 9, 3, 1])).toBe(12)
+  })
+})