Doubt in Queue Management code in C++

Question

This is what I understand: queue is initialised as a pointer. Then it is given a memory location in the heap for holding an array using new.
This is what I don't understand: When queue is a pointer, how can we write queue[i] and perform other functions on it without derefencing it. So shouldn't we use *queue[i] instead?
Help me understand this, please.
Thank You
https://code.sololearn.com/cPBr66cOIjtR/?ref=app

Answer 1

queue[0] is the same thing as *queue. The [0] specifies the contents at offset 0. Just like you could use queue[5] or alternatively *(queue + 5).

Answer 2

Jerry Hobby Is this just for arrays?