--- a/hws/hw01.tex	Mon Sep 30 12:27:15 2019 +0100
+++ b/hws/hw01.tex	Tue Oct 01 00:29:48 2019 +0100
@@ -21,14 +21,14 @@
       If you want to follow the code I present during the
       lectures, read the handout about Scala.
 
-\item {\bf (Optional)} Have a look at the crawler programs.
-      Can you find a usage for them in your daily programming
-      life? Can you improve them? For example in cases there
-      are links that appear on different recursion levels, the
-      crawlers visit such web-pages several times. Can this be
-      avoided? Also, the crawlers flag as problematic any page
-      that gives an error, but probably only 404 Not Found
-      errors should be flagged. Can you change that?)
+%\item {\bf (Optional)} Have a look at the crawler programs.
+%      Can you find a usage for them in your daily programming
+%      life? Can you improve them? For example in cases there
+%      are links that appear on different recursion levels, the
+%      crawlers visit such web-pages several times. Can this be
+%      avoided? Also, the crawlers flag as problematic any page
+%      that gives an error, but probably only 404 Not Found
+%      errors should be flagged. Can you change that?)
 
 \item Read the handout of the first lecture and the handout
       about notation. Make sure you understand the concepts of