打家劫舍

src/array/house-robber.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+export const rob = function (nums) {
+  if (!nums) return 0
+  const len = nums.length
+  if (len === 0) return 0
+  if (len === 1) return nums[0]
+
+  let first = nums[0]; let second = Math.max(nums[0], nums[1])
+  for (let i = 2; i < len; i++) {
+    const temp = second
+    second = Math.max(first + nums[i], second)
+    first = temp
+  }
+  return second
+}