Need for speed

[Nestor]

On Thursday, 1 April 2021 at 19:38:39 UTC, H. S. Teoh wrote:
> On Thu, Apr 01, 2021 at 04:52:17PM +0000, Nestor via 
> Digitalmars-d-learn wrote: [...]
>>     [...]
>
> Since the length of the array is already known beforehand, you 
> could get significant speedups by preallocating the array:
>
> [...]

First, thanks everyone!

I don't have ldc2 installed so I skipped those suggestions.

I always suspected I was doing something wrong with the random 
generator. Some how in a test if I put the seed outside the loop 
I got the same (not)random number but might be a copy-paste error 
from my side.

Reserved length in an integers list is something I am starting to 
give great value, thanks for pointing it out.

I feel satisfied with 30-12ms using rdmd I am getting now :)

Thanks again Ali, Teoh, Steven, ag0aep6g, Imperatorn