! Copyright (c) 2010 Aaron Schaefer. All rights reserved.
! The contents of this file are licensed under the Simplified BSD License
-! A copy of the license is available at http://factorcode.org/license.txt
+! A copy of the license is available at https://factorcode.org/license.txt
USING: arrays combinators.short-circuit kernel math math.combinatorics
math.functions math.primes project-euler.common sequences
sequences.extras ;
FROM: project-euler.common => permutations? ;
IN: project-euler.070
-! http://projecteuler.net/index.php?section=problems&id=70
+! https://projecteuler.net/index.php?section=problems&id=70
! DESCRIPTION
! -----------