Can anyone explain these questions??

Question

https://photos.app.goo.gl/nUEFeyFtmMt8ghCe7

Answer 1

This is the link
https://photos.app.goo.gl/nUEFeyFtmMt8ghCe7
Next time make sure to share it in the description and not in title.

1) https://docs.microsoft.com/en-us/cpp/cpp/int8-int16-int32-int64

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[5]
So sizeof(x) = 5*4 = 20 because one integer variable occupies 4 bytes of memory. So 20/4 = 5.