--- a/templates3/knight1.scala Thu Oct 31 09:49:33 2019 +0000
+++ b/templates3/knight1.scala Thu Oct 31 10:44:10 2019 +0000
@@ -1,5 +1,8 @@
-// Part 1 about finding Knight's tours
-//=====================================
+// Preliminary Part about finding Knight's tours
+//===============================================
+
+
+object CW8a {
// If you need any auxiliary function, feel free to
// implement it, but do not make any changes to the
@@ -26,7 +29,7 @@
//def legal_moves(dim: Int, path: Path, x: Pos) : List[Pos] = ...
-//some test cases
+//some testcases
//
//assert(legal_moves(8, Nil, (2,2)) ==
// List((3,4), (4,3), (4,1), (3,0), (1,0), (0,1), (0,3), (1,4)))
@@ -46,7 +49,7 @@
//def enum_tours(dim: Int, path: Path) : List[Path] = ...
-//(5) Implement a first-function that finds the first
+//(4) Implement a first-function that finds the first
// element, say x, in the list xs where f is not None.
// In that case Return f(x), otherwise None. If possible,
// calculate f(x) only once.
@@ -54,16 +57,15 @@
//def first(xs: List[Pos], f: Pos => Option[Path]) : Option[Path] = ...
-// test cases
+// testcases
+//
//def foo(x: (Int, Int)) = if (x._1 > 3) Some(List(x)) else None
//
//first(List((1, 0),(2, 0),(3, 0),(4, 0)), foo) // Some(List((4,0)))
//first(List((1, 0),(2, 0),(3, 0)), foo) // None
-
-
-//(6) Implement a function that uses the first-function from (5) for
+//(5) Implement a function that uses the first-function from (5) for
// trying out onward moves, and searches recursively for a
// knight tour on a dim * dim-board.
@@ -92,6 +94,9 @@
// in order to print out the time that is needed for
// running count_tours
+
+
+
// for printing a board
def print_board(dim: Int, path: Path): Unit = {
println
@@ -105,3 +110,5 @@
*/
+
+}