Remove temporary variable

pickfire · web-flow · commit 7cdd4170947e · 2020-03-13T23:41:17.000+08:00
diff --git a/algorithms/dp/house_robber.py b/algorithms/dp/house_robber.py
@@ -15,7 +15,5 @@
 def house_robber(houses):
     last, now = 0, 0
     for house in houses:
-        tmp = now
-        now = max(last + house, now)
-        last = tmp
+        last, now = now, max(last + house, now)
     return now
