A little of coordination for Rosettacode

[bearophile]

> arithmetic_evaluation.d
> balanced_ternary.d
> combinations_with_repetitions1.d
> k_means_plus_plus_clustering.d
> names_to_numbers.d or number_names.d

I have "fixed" them.

This is the problem in array, already in Bugzilla, I think it's a 
kind of regression:


import std.array: array;
immutable foo = [""].array;
void main() {}


The problem with inout in balanced_ternary.d was caused by inout 
semantics that keeps subtly changing every month. I don't know 
the causes of such micro-regressions.

Bye,
bearophile