
Sorting Algorithm

This is a sorting algorithm.   It may be applied to a set of data in order to sort it.    
For comparing various sorts, see compare sorts.  
For other sorting algorithms,   see sorting algorithms,   or:

O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
O(n2) sorts
Bubble sort |
Cocktail sort |
Cocktail sort with shifting bounds |
Comb sort |
Cycle sort |
Gnome sort |
Insertion sort |
Selection sort |
Strand sort
other sorts
Bead sort |
Bogo sort |
Common sorted list |
Composite structures sort |
Custom comparator sort |
Counting sort |
Disjoint sublist sort |
External sort |
Jort sort |
Lexicographical sort |
Natural sorting |
Order by pair comparisons |
Order disjoint list items |
Order two numerical lists |
Object identifier (OID) sort |
Pancake sort |
Quickselect |
Permutation sort |
Radix sort |
Ranking methods |
Remove duplicate elements |
Sleep sort |
Stooge sort |
[Sort letters of a string] |
Three variable sort |
Topological sort |
Tree sort




Task

Sort an integer array with the   radix sort algorithm.

The primary purpose is to complete the characterization of sort algorithms task.




#!/usr/bin/perl
use warnings;
use strict;
 
sub radix {
    my @tab = ([@_]);
 
    my $max_length = 0;
    length > $max_length and $max_length = length for @_;
    $_ = sprintf "%0${max_length}d", $_ for @{ $tab[0] }; # Add zeros.
 
    for my $pos (reverse -$max_length .. -1) {
        my @newtab;
        for my $bucket (@tab) {
            for my $n (@$bucket) {
                my $char = substr $n, $pos, 1;
                $char = -1 if '-' eq $char;
                $char++;
                push @{ $newtab[$char] }, $n;
            }
        }
        @tab = @newtab;
    }
 
    my @return;
    my $negative = shift @tab;                            # Negative bucket must be reversed.
    push @return, reverse @$negative;
    for my $bucket (@tab) {
        push @return, @{ $bucket // [] };
    }
    $_ = 0 + $_ for @return;                              # Remove zeros.
    return @return;
}