RangeQuery version 0.04
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=head1 NAME
RangeQuery - retrieves the minimum/maximum value from a sequence within a given range.
=head1 SYNOPSIS
use RangeQuery;
my @sequence = (4,2,-8,6,-1,2);
my $range = RangeQuery->new(@sequence);
my $min = $range->min_value(0,2); # -8
my $max = $range->max_value (3, 5); # 6
=head1 DESCRIPTION
Retrieves the minimum/maximum value in a given range.
It takes O(n log n) to build the RangeQuery object and O(1) to retrieve a value.
Note: You should use a more naive approach with small sequences of values.
=head1 METHODS
=head2 new
Creates a new RangeQuery object.
This builds the appropriate data structure in order to retrieve values efficiently.
=cut
=head2 max_value
Retrieves the maximum value in a given range.
=cut
=head2 min_value
Retrieves the minimum value in a given range.
=cut
=head1 SEE ALSO
You can check a tutorial from TopCoder,
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=head1 AUTHOR
JoEo Carreira, Ejoao.carreira@ist.utl.ptE
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2009 by JoEo Carreira
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.10.0 or,
at your option, any later version of Perl 5 you may have available.
=cut