! Copyright (c) 2007-2009 Aaron Schaefer, Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
+! See https://factorcode.org/license.txt for BSD license.
USING: kernel math math.functions ranges project-euler.common sequences
sets ;
IN: project-euler.001
-! http://projecteuler.net/index.php?section=problems&id=1
+! https://projecteuler.net/index.php?section=problems&id=1
! DESCRIPTION
! -----------