Help with Ranges

[Charles]

On Monday, 27 July 2020 at 18:15:26 UTC, Steven Schveighoffer 
wrote:
> On 7/27/20 1:10 PM, Charles wrote:
>
>> [...]
>
> Let's talk about a concrete example, so you can see why:
>
> int[] arr = [21, 83, 45, 60];
>
> [...]

I had very incorrect model of how ranges function, and after 
reading your post along with map's source, I think I know how to 
proceed from here. I really appreciate your patience, and next 
time I'll clearly explain my constraints.

Thank you, gentlemen.