Multiple approaches for each problem (brute force + optimized)
Problems categorized by Data Structures (Array, String, Linked List, Stack, Queue, Trees, Graph, DP, etc.)
120+ problems divided based on 14 problem-solving approaches
Excel tracker to monitor progress (data structure wise)
Approach-based tracker to identify weak areas
What are people saying
The complete question answer especially if you are targeting the specific role in top MNCs is very helpful resource to find
And in a well formatted way, with even visual looks calming while preparing