diff -r e9d14d58be3c -r daf561a83ba6 pre_marking4/knight1_test3b.scala
--- a/pre_marking4/knight1_test3b.scala	Thu Jan 13 12:55:03 2022 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,19 +0,0 @@
-import CW9a._
-//type Pos = (Int, Int)    // a position on a chessboard 
-//type Path = List[Pos]    // a path...a list of positions
-
-/*
-def count_all_tours_urban(dim: Int) = {
-  for (i <- (0 until dim).toList; 
-       j <- (0 until dim).toList) yield count_tours(dim, List((i, j)))
-}
-*/
-
-def count_all_tours_urban(dim: Int) = {
-  for (i <- (0 until 3).toList; 
-       j <- (0 until dim).toList) yield count_tours(dim, List((i, j)))
-}
-
-
-assert(count_all_tours_urban(5) == List(304, 0, 56, 0, 304, 0, 56, 0, 56, 0, 56, 0, 64, 0, 56))
-