I been trying to understand below program.. But I cannot get past the concept of couple areas,
1)

         foreach $i (0..$#letters) {
                  if ($blankword[$i]) {
                          print $blankword[$i];
                  } else {
                          print "-";
                  }
[download]

Say @letters = n o w, and iterating over 0..$#letters would assign i to $letters[0]=n $letters1=o $letters2=w and @blankword was 0 0 0, how is $blankword\$i\ is one of n o w ???

2)can someone please explain to me in plain english what

 $guesses[@guesses]=$guess;
[download]

I guess @guesses=() was intially to empty array, now, how does
above mean? assigning $guess word to @guesses array, but not sure what putting array in square bracket means(never seen it before)

#!/usr/bin/perl -w

   @words = qw( internet answers printer program );
   @guesses=();
   $wrong=0;

   $choice=$words[rand @words];
   $hangman="0-|--<";

  @letters=split(//, $choice);
  @hangman=split(//, $hangman);
  @blankword=(0) x scalar(@letters);
  OUTER: 
      while ($wrong<@hangman) {
          foreach $i (0..$#letters) {
                  if ($blankword[$i]) {
                          print $blankword[$i];
                  } else {
                          print "-";
                  }
          }
          print "\n";
          if ($wrong) {
                  print @hangman[0..$wrong-1]
          }
          print "\n Your Guess: ";
          $guess=<STDIN>;  chomp $guess;
          foreach(@guesses) {
                  next OUTER if ($_ eq $guess);
          }
          $guesses[@guesses]=$guess;
          $right=0;
          for ($i=0; $i<@letters; $i++) {
                  if ($letters[$i] eq $guess) {
                          $blankword[$i]=$guess;
                          $right=1;
                  }
          }
          $wrong++ if (not $right);
          if (join('', @blankword) eq $choice) {
                  print "You got it right!\n";
                  exit;
          }
  }
  print "$hangman\nSorry, the word was $choice.\n";
[download]

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