Julia, Common Lisp, and maybe Haskell or something like that for me. I use Julia to get the correct solutions in a naive way, then I optimise the approach and c

Julia, Common Lisp, and maybe Haskell or something like that for me. I use Julia to get the correct solutions in a naive way, then I optimise the approach and compare the efficiency of the languages. It's pretty fun. Yesterdays puzzle was 0.0002 in Julia and 0.002 in CL for the exact same approach.