solutions to 4.32 and 4.34

diff --git a/src/sicp/ex4_32.rkt b/src/sicp/ex4_32.rkt
new file mode 100644 (file)
index 0000000..f1c6457
--- /dev/null
+++ b/src/sicp/ex4_32.rkt
@@ -0,0 +1,8 @@
+#lang racket
+
+#|
+
+Here not only the cdr but the car is also lazy. One can represent lazy trees with
+such a cons cell.
+
+|#
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diff --git a/src/sicp/ex4_34.rkt b/src/sicp/ex4_34.rkt
new file mode 100644 (file)
index 0000000..d8955f6
--- /dev/null
+++ b/src/sicp/ex4_34.rkt
@@ -0,0 +1,10 @@
+#lang racket
+
+#|
+
+Too 'lazy' to implement this problem.
+
+One can create a type for lazy cons cells and when it comes to printing, one can print 
+until some pre-defined number of cells exhausted and then print "... etc" or something like that.
+
+|#
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