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Challenge 9: Union and Intersection of Lists Using Hashing

Explore how to implement union and intersection operations on linked lists using hashing techniques in C#. Understand the definitions, design algorithms to remove duplicates, and write optimized code to handle these common set operations efficiently in coding interviews.

Problem statement

Union and intersection are two of the most popular operations, which can be performed on data sets. Now, you will be implementing them for linked lists! Let’s take a look at their definitions.

Union

Given the two lists of A and B, the union is the list that contains elements or objects that belong to either A or to B or to both, but duplicates are not allowed. ...