I think the Nim code is also pretty readable: https://github.com/def-/LPATHBench/blob/master/nim.nim

And Nim doesn't look bad in the other statistics (on an x86_64 Intel Core2Quad Q9300):

    Lang    Time [ms]  Memory [KB]  Compile Time [ms]  Compressed Code [B]
    Nim          1400         1460                893                  486
    C++          1478         2717                774                  728
    D            1518         2388               1614                  669
    Rust         1623         2632               6735                  934
    Java         1874        24428                812                  778
    OCaml        2384         4496                125                  782
    Go           3116         1664                596                  618
    Haskell      3329         5268               3002                 1091
    LuaJit       3857         2368                  -                  519
    Lisp         8219        15876               1043                 1007
    Racket       8503       130284              24793                  741

Code size with gzip -9 < nim.nim | wc -c. Removed unused functions in Haskell.