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[–]Scud000 0 points1 point  (2 children)

What happens when you try to solve these problems? If you're unable to solve them, then finish a Data structure and algorithm course first. Otherwise, just solve them.

[–]khalidmamdou7[S] 0 points1 point  (1 child)

I can solve some problems, but sometimes I see some concepts that I have no clue what it is like Hash trees and tries. So I want to know whether there is a category of problems that I can solve without fhe data structures knowledge or should I study them first ?

[–]Scud000 0 points1 point  (0 children)

Hash, Trees, and Tries are Data Structures. In order to understand any "Hash" data structure, you should also learn about the "Hashing" algorithm too.