random_projection division bug?

[Wiijah]

In random_projection, the reference solution contains the line
double p=16/n;

where n is an int. This will round to 0 when n > 16, at least on my machine. Hence, the output for this puzzle becomes all 0. Is this correct behaviour?

[m8pple]

I'm really not doing well this year on the details.

I tweaked this at the last minute in order to change the sparsity, but managed to
remove the .0 off the previous constant. Of course, by that point I'd taken out some
of the logging that checked it is doing something sensible, as otherwise it gives
too many hints about how to attack it.

I'm double-checking now, but I'm pretty sure it should be:

double p=16.0/n;

This should give a sparse projection, but not an all zero one - as you point
out, this results in a completely trivial problem.