Re: create a matrix for print 0 or 1 from pairing

What I would do is:

Create a mapping from colum/row name to number. A hash can be very helpful here.
Create an emtpy array or arrays
For each pair that you read, split it into two names, and use the mapping from the first step to turn it into two column/row numbers. Use that to access the array of arrays, and set the value to 1
Print the result

Perl 6 - links to (nearly) everything that is Perl 6.

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