Hi Perlmonks,

I am interested to place the four highest valued letters in an array in descending order from two arrays x and y. Array x represents the letters and array y corresponds to the respective numerical value of each element of x. For example, 'a' refers to 9 and 'b' to 6 and so on. I have written a script which finds out the letters in descending order i.e. a b c d for the corresponding values 9 6 5 4. But I have failed to place the letters in an array. I look forward to the suggestions of perlmonks to sort out this problem.

Here goes my script: 

#!/usr/bin/perl
use warnings;
use strict;   

 my @x=qw/d b c e a f/; 
 my @y=qw/4 6 5 2 9 1/;
 
 my @sorted_idx=sort{$y[$a]<=>$y[$b]}0..$#y; 

print "\n
####################################
 4 highest valued letters:
####################################\n";

descending_order (reverse @sorted_idx[$#sorted_idx-3..$#sorted_idx]); 

 sub descending_order {my @indices=@_;
    print " $x[$_] " for @indices; 
  }   
exit;

[download]

I have got the results in cmd as follows:

C:\Users\S>cd d*

C:\Users\S\Desktop>y3.pl

####################################

4 highest valued letters:

####################################

a b c d

C:\Users\S\Desktop>

Expected Results:

I want the results in an array so that I can

further operate on the array elements:

my @array=qw/a b c d/; # in descending order of values

print "\n @array\n";

Result: a b c d

In reply to How can I get the four highest valued letters in an array? by supriyoch_2008

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