assignment4 tweaks, hints

Signed-off-by: Jim Pryor <profjim@jimpryor.net>

diff --git a/assignment4.mdwn b/assignment4.mdwn
index cfe621c..9f56675 100644 (file)
--- a/assignment4.mdwn
+++ b/assignment4.mdwn
@@ -28,6 +28,8 @@ First, read this: [[Implementing trees]]
 
 <OL start=3>
 <LI>blah
+
+(See [[hints/Assignment 4 hint 3]] if you need some hints.)
 </OL>
 
 
@@ -80,5 +82,8 @@ If we gave you such a `Y1` and `Y2`, how would you implement the above definitio
 
                                        
 <LI>(More challenging.) Using our derivation of Y from the [[Week2]] notes as a model, construct a pair `Y1` and `Y2` that behave in the way described.
+
+(See [[hints/Assignment 4 hint 4]] if you need some hints.)
+
 </OL>
 

diff --git a/hints/assignment_4_hint_3.mdwn b/hints/assignment_4_hint_3.mdwn
new file mode 100644 (file)
index 0000000..48063d3
--- /dev/null
+++ b/hints/assignment_4_hint_3.mdwn
@@ -0,0 +1,2 @@
+Hints for enumerating a tree's fringe.
+

diff --git a/hints/assignment_4_hint_4.mdwn b/hints/assignment_4_hint_4.mdwn
new file mode 100644 (file)
index 0000000..a30b486
--- /dev/null
+++ b/hints/assignment_4_hint_4.mdwn
@@ -0,0 +1,2 @@
+Hints for Y1,Y2. 
+