# Exercise: Collections

Exercise: Collections: Exercise: Collections.

Updated: November 3, 2026

1. [Exercise: Collections](https://www.ask-codey.com/lessons/exercise-collections) (Apprentice): Solve 14 problems with List<T> and Dictionary<TKey, TValue> (filtering, searching, counting, looking up and combining) and check each one with tests.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/exercise-collections