Add scala solution for 198-House-Robber

scala/198-House-Robber.scala

@@ -0,0 +1,13 @@
+object Solution {
+    def rob(nums: Array[Int]): Int = {
+        var (prevTwoMaxProfit, prevMaxProfit) = (0, 0)
+
+        for (currCash <- nums) {
+            val currProfit = (currCash + prevTwoMaxProfit).max(prevMaxProfit)
+            prevTwoMaxProfit = prevMaxProfit
+            prevMaxProfit = currProfit
+        }
+
+        return prevMaxProfit
+    }
+}