diff -r 4b347b6e134f -r bc3980949af2 cws/pre_cw03.tex
--- a/cws/pre_cw03.tex	Sun Nov 08 03:08:31 2020 +0000
+++ b/cws/pre_cw03.tex	Sun Nov 08 13:09:38 2020 +0000
@@ -25,7 +25,9 @@
 \bigskip
 
 \IMPORTANT{This part is about the shunting yard algorithm by Dijkstra.
-  The preliminary part is due on \cwEIGHT{} at 5pm and worth 3\%.}
+  The preliminary part is due on \cwEIGHT{} at 5pm and worth 3\%.
+  Any 1\% you achieve in the preliminary part counts as your
+  ``weekly engagement''.}
 
 \noindent
 Also note that the running time of each part will be restricted to a