Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

converter's scratchpad

by converter (Priest)
on Jun 02, 2004 at 03:29 UTC ( #359104=scratchpad: print w/ replies, xml ) Need Help??

#!/usr/bin/perl use warnings; use strict; # given skew factor and sectors/track, # return a list of skewed sector numbers. # skew: skew factor # sectors: number of sectors (per track) sub skewlist { my ($skew, $sectors) = @_; my @a = 1; my %seen = (1 => 1); for (2..$sectors) { my $s = $a[-1] + $skew; $s = $skew - ($sectors - $a[-1]) if $s > $sectors; $s++ while $seen{$s}; $seen{$s}++; push @a, $s; } return @a; } sub main { unless (2 == @ARGV) { die "usage: skewgen <skew factor> <number of sectors>"; } my @a = skewlist(@ARGV); print "skewlist: @a\n"; } exit(main()); __END__ $ ./skewgen 4 15 skewlist: 1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 $ ./skewgen 6 26 skewlist: 1 7 13 19 25 5 11 17 23 3 9 15 21 2 8 14 20 26 6 12 18 24 4 +10 16 22
Log In?
Username:
Password:

What's my password?
Create A New User
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (4)
As of 2016-04-29 04:33 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    :nehw tseb si esrever ni gnitirW







    Results (438 votes). Check out past polls.