What is the best data structure for a specific use case?

What is the best data structure to use for implementing a priority queue?

A priority queue is best implemented using a binary heap, as it allows for efficient insertion and removal of the highest (or lowest) priority element.

What about when I need to frequently search for elements?

If you need to frequently search for elements, a hash table or a balanced binary search tree like an AVL tree would be more suitable.

Can you suggest a data structure for handling large datasets with frequent updates?

For large datasets with frequent updates, consider using a B-tree or a segment tree, as they provide efficient insertions, deletions, and lookups.

What data structure should I use for implementing a social network?

A graph data structure is ideal for a social network, as it can effectively represent users as nodes and relationships as edges.