This is the link
Next time make sure to share it in the description and not in title.
2) const 'x' is a global variable which has a scope throughout the whole program whereas array variable 'x' has a scope limited to main() so it can be used again.
int x[x] = int x
So sizeof(x) = 5*4 = 20 because one integer variable occupies 4 bytes of memory. So 20/4 = 5.
Rashmi Mittal sizeof returns the amount of Bytes the element is using. So the idea is to find the sizeof(array) (in your case which will be 20)
So sizeof(array)/4 will be 5
And I have no idea about 1st question 😔