These are my codes used in qualification rounds.
(I posted my incomplete BF solution before)
I tried to use various languages to experience various styles of different languages.
I have only used Racket, Shell, and VB before, and I used COBOL, FORTRAN, Ada, Lua, and LLVM for first time.
Though I am not used to tables so I may not be qualified to say this, but I think that COBOL is not a good language to use in Code Jam.
FORTRAN was way easier to code than COBOL, and except small issue with floating point precisions, I had no problem coding.
I enjoyed coding in Racket, but I doubt that I can use Racket in harder problems fluently....
I used VB, Lua, and Ada. (By the way, they have similar but different if statements... ("if ... elseif ... end if" vs. "if ... elseif ... end" vs. "if ... elsif ... end if;"))
I know my VB code is quite bad; I changed algorithm quickly after finding better, clean algorithm.
Originally I planned to use Lua in this round, but I found out Lua was quite easy to use, so I didn't submit this code, to use Lua later.
Type systems in Ada was quite impressive. I have learned Ada in just a few hours, but I already began to like Ada (and I love gnat's informative error messages too).
Shell script was quite slow to execute, and comparing floating points was not trivial, but I consider it as a good practice on writing shell scripts.
LLVM assembly was the hardest one to code (except failed BF attempt) I think. I know that LLVM assembly is supposed to written by compilers, but anyway, as a LLVM assembly coder, I think that writing function and element types every time I use is a bit too overkill. It was interesting to see how codes are divided in blocks and how phi is used, though. (I learned about phi in compiler class just two days ago the contest happened.)