Language Details: OCaml

OCaml is a general purpose industrial-strength programming language with an emphasis on expressiveness and safety.

Official website (see also: Wikipedia article)
Code Jam 2012 Contestants using OCaml
Qualification Round
Used in 86 solutions by 22 contestants:
Round 1A
Used in 10 solutions by 4 contestants:
Round 1B
Used in 11 solutions by 4 contestants:
Round 1C
Used in 18 solutions by 7 contestants:
Round 2
Used in 18 solutions by 6 contestants:
Round 3
Used in 4 solutions by 1 contestants:

Submission Origin

France (7 contestants)
Japan (5 contestants)
Greece (3 contestants)
... (2 contestants)
Ukraine (2 contestants)
Russia (1 contestant)
Taiwan (1 contestant)
United Kingdom (1 contestant)
United States (1 contestant)