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Thankfully, the statement doesn't "overflow" so this program works:
#!/usr/bin/perl -w use strict; my $statement = "The number of 0s in this sentence is _, of 1s is _, o +f 2s is _, of 3s is _, of 4s is _, of 5s is _, of 6s is _, of 7s is _ +, of 8s is _, and of 9s is _."; my @index; my $resume = 0; while (($resume = index($statement, "_", $resume)) && $resume > 0) { push (@index, $resume++); } my $changed; do { $changed = 0; for my $n (0 .. $#index) { my $count = (grep { /$n/ } split (//, $statement)); my $old_count = substr($statement, $index[$n], 1); if ($count ne $old_count) { substr($statement, $index[$n], 1) = $count; $changed++; } } } while ($changed); print $statement,"\n";
The great mystery is finally revealed. Golf anyone?

In reply to Re: Hofstadter Metapuzzle by tadman
in thread (OT) Hofstadter Metapuzzle by MeowChow

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