From 154e84d6eb3f8aad60181f24327671ff8f090cbc Mon Sep 17 00:00:00 2001
From: Jim Pryor <profjim@jimpryor.net>
Date: Sun, 3 Oct 2010 19:41:51 -0400
Subject: [PATCH] assignment4 tweaks, hints

Signed-off-by: Jim Pryor <profjim@jimpryor.net>
---
 assignment4.mdwn               | 5 +++++
 hints/assignment_4_hint_3.mdwn | 2 ++
 hints/assignment_4_hint_4.mdwn | 2 ++
 3 files changed, 9 insertions(+)
 create mode 100644 hints/assignment_4_hint_3.mdwn
 create mode 100644 hints/assignment_4_hint_4.mdwn

diff --git a/assignment4.mdwn b/assignment4.mdwn
index cfe621cd..9f566758 100644
--- 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
index 00000000..48063d3a
--- /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
index 00000000..a30b4861
--- /dev/null
+++ b/hints/assignment_4_hint_4.mdwn
@@ -0,0 +1,2 @@
+Hints for Y1,Y2. 
+
-- 
2.11.0