Also, if you want to add more than 9 spans with an X in the same position, the result string won't be enough.

Easily fixed by using chr($x) instead of $x. That will allow 2^32 overlaps. Maybe even 2^64 on 64-bit systems. You might have to turn off some unicode warning.

In reply to Re^2: Efficient algorithm needed to split Set::IntSpan objects by ikegami
in thread Efficient algorithm needed to split Set::IntSpan objects by tim.bunce

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