How can I compare different elements of array in Perl?

Question

I am new to this field. So kindly go easy on me. I have two arrays:

@array1 = (\"ABC321\", \"CDB672\", \"PLE89\",....);

@array2 = (\"PLE89\", \"ABC678\", \"         


        

Answer 1

Language-agnostic suggestion would be to sort both arrays first (should take you O(n lg(n)), then compare with two iterators in linear time. If performance is not an issue, just keep it simple and go with quadratic number of pair-wise comparisons. While sorting you can also get rid of digits in the end.