Where can I find thematic tasks on algorithms and data structures?

Question

Algorithms

Let's say I have studied depth-first search or dynamic programming, but to consolidate it, I need to solve 5-10 tasks of a different plan. Moreover, with a check, as on codeforces (there I did not find such thematic tasks). Where to get these? It will be better if the complexity is increasing and all tasks are on the same topic

Answer 1

By algorithms. Codewars . In a game form, tasks of varying degrees of complexity are divided by topic. There is a check, you can compare solutions with solutions of other users. For data structures, I recommend the book Think Data Structures. Algorithms and Information Retrieval in Java. by Allen B. Downey, which includes exercises.

Answer 2

https://www.hackerrank.com/dashboard

Answer 3

Here
1. Here you can see and ask.
2. Here is a theory.