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  1. or download this
    my @ordered_result_list = sort keys %results;
    
  2. or download this
    print sort 1..10;  # 1 10 2 3 4 5 6 7 8 9
    
  3. or download this
    print sort { $a cmp $b } 1..10;  # 1 10 2 3 4 5 6 7 8 9
    
  4. or download this
    print sort { $a <=> $b } 1..10;  # 1 2 3 4 5 6 7 8 9 10
    
  5. or download this
    use List::Util qw( max );
    
    print max 1..10;  # 10
    
  6. or download this
    my %results = map { $_ => 1 if ( $low_watermark < $_ && $_ < $high_wat
    +ermark ) } @all_numbers;
    
  7. or download this
    $ perl -wle'my %h = map { $_ => 1 if $_ > 5; } 1..3; print 0+keys(%h);
    +'
    Odd number of elements in hash assignment at -e line 1.
    1
    
  8. or download this
    my %results = map { if ( $low_watermark < $_ && $_ < $high_watermark )
    + { $_ => 1 } else { () } } @all_numbers;
    
  9. or download this
    my %results = map { ( $low_watermark < $_ && $_ < $high_watermark ) ? 
    +$_ => 1 : () } @all_numbers;
    
  10. or download this
    my @results = grep { $low_watermark < $_ && $_ < $high_watermark } @al
    +l_numbers;
    
    print max(@results), "\n";