What does this statement do::p = new int[20];

Answer 1

Here is a link lmao.
https://www.sololearn.com/Course/Cplusplus/?ref=app

Answer 2

Read the course, the part about pointers, it explains it very well.

Answer 3

int * p = new int[20]; allocate on success a contiguous space of 20 integers

Answer 4

I asked this question after going through the pointers part of the course C++ Tutorials