Sha256: 19eaeff87259277e7de349587f6603f4bcd4c243d45894a204e0bd08bef50a31
Contents?: true
Size: 428 Bytes
Versions: 73
Compression:
Stored size: 428 Bytes
Contents
package Squares;
use strict;
use warnings;
use List::Util 'sum';
sub new {
my ($class, $to) = @_;
return bless { to => $to }, $class;
}
sub sum_of_squares {
my $self = shift;
return sum map { $_ ** 2 } 1..$self->{to};
}
sub square_of_sums {
my $self = shift;
return (sum 1..$self->{to}) ** 2;
}
sub difference {
my $self = shift;
return $self->square_of_sums - $self->sum_of_squares;
}
1;
Version data entries
73 entries across 73 versions & 1 rubygems