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I violate the rules regarding global variable, strict and warnings.

Making it strict and warnings compliant was not very difficult and could be carried out in a quite mechanical way:

  • strict was satified after declaring 6 more sub-specific variables with my.
  • warnings were issued for using non-existant array/hash values. I silenced these by looking what kind of data is expected and making an appropriate || fallback, e.g. line 278 became:
    ($nl, $nd) = ( scalar(@{ ($tmp_across{$cur}||=[])->{locs} ||=[] }), scalar(@{ ($tmp_across{$cur}||=[])->{nums} ||=[] }) );
    this way

All in all not very demanding and nothing which should have caused much headache had your script been started with use strict; use warnings; as the first keystrokes right from the beginning of creating it.

As for the global variables... at least they already were cleanly declared, YMMV.

In reply to Re: kakuro puzzle generator by pKai
in thread kakuro puzzle generator by davidj

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