What is the complexity of data structures in C++?

What is the time complexity of accessing an element in an array in C++?

The time complexity of accessing an element in an array is O(1), as it allows direct access using the index.

How does the complexity differ for linked lists?

For linked lists, accessing an element has a time complexity of O(n) because you need to traverse the list from the head.

What about inserting an element in a linked list?

Inserting an element in a linked list can be done in O(1) time if you have a pointer to the insertion point; otherwise, it's O(n).

Can you explain the space complexity of a binary tree?

The space complexity of a binary tree is O(n), where n is the number of nodes, as each node requires space.