When you begin to practice algorithms and data structures with LeetCode problems.
Remember to build your confidence and find the fun of algorihtms in your first step.
You should start with easy problems.
This is a list of categories with classic and easy problems for you.
Array
Remove Duplicates from Sorted Array
Remove Duplicates from Sorted Array II
String
First Unique Character in a String
Tree
Binary Tree Preorder Traversal
Binary Tree Postorder Traversal
Binary Tree Level Order Traversal
LinkedList
Intersection of Two Linked Lists
DFS & BFS
Backtracking
Other references
How To Learn Data Structures And Algorithms is a roadmap for the newbie.
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Top comments (3)
This is very useful thanks :)
I also liked the problem 69. Sqrt(x), it's "easy" and it helps think outside of the box: leetcode.com/problems/sqrtx/descri...
Very nice quick reference.
Leetcoder,
youtube.com/playlist?list=PLctj_N-...