lets say you have this column of numbers

1000028706
1000028707
1000028708
100
12
1000028706
1000028707
1000028708
1000028709
1000028706
1000028707
1000028708
100
12
6

How can I build up a program that tells me that this sequence
1000028706
1000028707
1000028708
is repeated somewhere in the column, and how can i know where?

In your example, would "100,12" also be output, or do you only care about the first find? Do you have a minimum or maximum number of repeats you care about? Is a repeated number a "sequence of length 1"? Can it be capped to know that if you have more than N items in common, you don't have to compare more than N items from the entire pair of sequences?

-tkc



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