Which data structures should we use for a use case?

Choosing the right data structure for a use case depends on the specific requirements and constraints of the problem you are trying to solve. Here is a guide on choosing the right data structure for different use cases:

Example use cases	Data structure
Find whether an element is a member of a set when the space efficiency and speed of query operations are critical, even at the expense of a small probability of false positives. Ensure that a web cache does not store duplicate URLs. Check whether a key might be in a database table before performing a costly disk access. Filter out known spam emails efficiently and check whether an incoming email matches any email in a database of known spam addresses	Bloom filter
Estimate...