How many locations in the memory

Question

int x[n] will reserve how many locations in the memory?

n or n+1

Answer 1

What do you mean by location?
As far as I know, lets say you have 4gb of ram, when computer is running some of it will be reserved for OS. Lets say you are left with 3.5gb of ram. You allocate memory for your variables, when you run the code, there will be memory allocated for your variables in ram. So here, I think, we cannot talk about a physical location.
If you want to know the amount of memory that will be allocated for your variables, use sizeof() function. It takes data-type (like int, char or user defined), variables (arrays, vectors whatever) as parameter and returns size in bytes.

Answer 2

Thanks
i agree with you but
There is a question
https://www.sololearn.com/post/350359/?ref=app

is the correct ans n-1 ?

Answer 3

I think it is n because every element's address is different. If there are n elements than there are n different addresses (locations). Why would it be n-1?

Answer 4

Mustafa K. Because it's array and it starts from zero so I tought n-1 but know as you said the correct answer is n