A little of coordination for Rosettacode

[bearophile]

Is the Fwend user of Rosettacode (or some other interested 
person) around here? I have written partial D implementations for 
three tasks, maybe a little of coordination will speedup the work:

http://rosettacode.org/wiki/Permutations/Rank_of_a_permutation
http://rosettacode.org/wiki/Universal_Turing_machine
http://rosettacode.org/wiki/RCRPG
Bye,
bearophile