What are the key data structures in C++?
In C++, the key data structures include arrays, linked lists, stacks, queues, trees, and hash tables.
Can you explain the difference between a stack and a queue?
Sure! A stack follows the Last In First Out (LIFO) principle, while a queue follows the First In First Out (FIFO) principle.
What is a linked list and how is it different from an array?
A linked list is a collection of nodes where each node points to the next. Unlike arrays, linked lists can easily grow and shrink in size.
When would you use a tree data structure?
Trees are useful for hierarchical data representation, such as file systems, and for efficient searching and sorting.
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