X-Git-Url: https://gitweb.factorcode.org/gitweb.cgi?p=factor.git;a=blobdiff_plain;f=extra%2Fbenchmark%2Fbacktrack%2Fbacktrack.factor;h=6074aae8433dd1902d624d0e386b0fedd7cc3447;hp=4aab071b80c1141608dfe8a48b1b858ba8fbd784;hb=96d543056491bfd71e65a093f4add5a6a5bb780d;hpb=6206ba5583b7616c59741963dbf01d8c9c88e223

diff --git a/extra/benchmark/backtrack/backtrack.factor b/extra/benchmark/backtrack/backtrack.factor
index 4aab071b80..6074aae843 100644
--- a/extra/benchmark/backtrack/backtrack.factor
+++ b/extra/benchmark/backtrack/backtrack.factor
@@ -1,8 +1,7 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: backtrack shuffle math ranges quotations locals fry
-kernel words io memoize macros prettyprint sequences assocs
-combinators namespaces ;
+USING: assocs backtrack kernel math memoize ranges sequences
+words ;
 IN: benchmark.backtrack
 
 ! This was suggested by Dr_Ford. Compute the number of quadruples