I'm slow again. This reads DATA (once), one line at a time, to populate '@movie'. Subroutine 'sum()' adds arrays of numbers. Otherwise, not much different from others.
#!/usr/bin/perl -w
use strict;

my @movie;
my $seen = 0;
my $collected;

while (<DATA>){

  if (my ($film,$show) = /^\*.+Movie="(.+)"\s*show=(\w+)/){
    
    push (@{$movie[$seen-1]},$collected) if $collected;
    
    $movie[$seen++] = [($film,$show)];
    
    $collected = 0;
  }
  else{

    my @take = grep { $_ >= 20} split /\s/;
  
    $collected = sum($collected,@take);
  }
}

push (@{$movie[$seen-1]},$collected) or die $!;

print "Movie\tShow\tSumCollection>20\n";
print "$_->[0]\t$_->[1]\t$_->[2]\n" for @movie;


# use Data::Dumper;
# print "\n\@movie Array looks like this: \n";
# print Dumper(\@movie);

sub sum
{
  my $x;
  for (@_){
    $x += $_;
  }
  return $x;
}

__DATA__
* Movie="ABC" show=4 
10 20 30 14 90 30
21 13 11 10 09 23
22 05 22 15 19 20

* Movie="XYZ" show=4 
10 20 30 14 90 30
21 13 11 10 09 23
22 05 22 15 19 10

[download]

FWIW
(changed some details after posting).
mkmcconn

In reply to Re: Arithmatic operation in PERL by mkmcconn
in thread Arithmatic operation in PERL by Anonymous Monk

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