diff -r bd9d142d2cd8 -r 5c57c407e27b testing5/bf_test2.scala
--- a/testing5/bf_test2.scala	Wed Oct 30 11:51:02 2019 +0000
+++ b/testing5/bf_test2.scala	Wed Oct 30 12:37:18 2019 +0000
@@ -1,3 +1,4 @@
+import CW10a._
 
 assert(sread(Map(), 2) == 0)
 assert(sread(Map(2 -> 1), 2) == 1)