Originally posted by Paul Clapham:
Enumerate through them and place the last names into two Set objects. While you are doing that you can check each of the two enumerations to see if it contains duplicates (one interpretation of the question).
Originally posted by Homer Phillips:
IIRC, if you come to the US annd graduate from a university then you are not on the H1-B program. I think it is F1 visa. Surely some one around here knows how this works.