Quickest way to compare a bunch of array or list of values.
- by zapping
Can you please let me know on the quickest and efficient way to compare a large set of values. Its like there are a list of parent codes(string) and each code has a series of child values(string). The child lists have to be compared with each other and find out duplicates and count how many times they repeat.
code1(code1_value1, code1_value2,…