Hello,
Perl sorting, here is the task.

11_22   A
22_45   B
22_33   C
25_28   D
47_49   E
...

I want to group the A,B,C,D such that the ranges listed in the first column are grouped together so B contains the set of B->{C, D}, C->{D}, A->{} etc.

I am looking for a way to sort and group by ranges.

In reply to sorting and grouping by by jperlq

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