Hello ovedpo15,
You can use the module List::Util::min and do something like that:
#!/usr/bin/env perl
use strict;
use warnings;
use List::Util 'min';
my @arr = ( 11673326,
11673329,
11673325,
11673330,
11673321,
11673335 );
print "Please insert a number:\n";
chomp(my $number = <>);
my $next_largest = min grep $_ > $number, @arr;
if(defined($next_largest)) {
print $next_largest."\n";
}
else {
print "undef\n";
}
__END__
$ perl test.pl
Please insert a number:
11673326
11673329
$ perl test.pl
Please insert a number:
11673321
11673325
$ perl test.pl
Please insert a number:
11673335
undef
Hope this helps, BR
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