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https://www.w3resource.com/csharp-exercises/basic/index.php#editorr


https://www.educative.io/blog/top-45-c-sharp-data-structure-questions

https://betterprogramming.pub/crack-the-top-40-c-data-structure-questions-5a71608f33ec


https://kingrayhan.medium.com/500-data-structures-and-algorithms-practice-problems-and-their-solutions-b45a83d803f0