"Sliding window" is a decptive title, but the problem is interesting.
A not very perlish solution: #! perl -slw
use strict;
my %hash = (a=>2, b=>1, c=>5, d=>3, e=>4);
my $input = "abcdaeec";
our $N //= 2;
$,= ' ';
print map{
my $iplus = ord() - ord('a');
$iplus = ( $iplus + $N ) % keys %hash;
$iplus = chr( ord('a') + $iplus );
$hash{ $_ } + $hash{ $iplus };
} split '', $input;
__END__
C:\test>junk41 -N=2
7 4 9 5 7 5 5 9
C:\test>junk41 -N=3
5 5 7 4 5 9 9 7
C:\test>junk41 -N=4
6 3 6 8 6 7 7 6
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|