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#!/usr/bin/env perl use strict; use warnings; use Algorithm::Loops qw(NestedLoops); use Text::Levenshtein::XS qw(distance); my @chars = qw(A M N U); my $depth = 5; # We're taking "five at a time" from A, M, N, U. my $min_dist = 3; # We need a minimum difference of 3 characters. my @strings; NestedLoops( [ ([@chars]) x $depth ], sub { push @strings, join('', @_) }, ); my $count = 0; foreach my $left (@strings) { foreach my $right (@strings) { if (distance($left, $right) >= $min_dist) { print ++$count, ": $left <=> $right\n"; } } } print "\n$count pairs with minimum difference of $min_dist from a set +of ", scalar(@chars), " characters taken $depth at a time.\n";

Algorithm::Loops and Text::Levenshtein make it easy to generate the list of hits.

Output:

1: AAAAA <=> AAMMM 2: AAAAA <=> AAMMN 3: AAAAA <=> AAMMU 4: AAAAA <=> AAMNM 5: AAAAA <=> AAMNN .... # many lines deleted 917168: UUUUU <=> UUNMM 917169: UUUUU <=> UUNMN 917170: UUUUU <=> UUNNA 917171: UUUUU <=> UUNNM 917172: UUUUU <=> UUNNN 917172 pairs with minimum difference of 3 from a set of 4 characters t +aken 5 at a time.

Dave


In reply to Re^3: 10 x 10 table of values by davido
in thread table of values by dnamonk

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