Somedude:
Although there was very few D contestants (only 15 out of 18365 contestants used D), D scored number 1.
This D solution of the "hall of mirrors" (modified from C++ code) is about 3.5 times faster on the large dataset than hos.lyric solution. No GC required, stack allocation wins:
http://codepad.org/TZwGLGjV Bye, bearophile
