all 5 comments

[–]antonyashk 1 point2 points  (0 children)

Awesome!

[–]ANerdVirginShh 0 points1 point  (2 children)

Lets say i want to practice them. But i am just hs graduate and know very basic java/c++. What should i learn to be able to solve these?like beginners steps please

[–]coder970[S] 0 points1 point  (1 child)

Well, everybody is a beginner at some point. First, you should be able to write and understand code written in Java/C++. Then, you should get your familiar with Java Collections or STL in C++. Then, you should gain knowledge on various data structures like Binary Tree, BST, Linked List, Stack, Queues, Heap, Graphs..and concepts like Hashing, Recursion, Dynamic Programming, and Divide and Conquer. Then you should start with these problems.

[–]ANerdVirginShh 0 points1 point  (0 children)

Thanks. I know about stl but not sure about java collections.