Gamified Progression Path
Play DSA Challenges
Unlock nodes, earn stars, and master key patterns through interactive mini-tasks.
4 Stars
350 XP
Campaign Progression
Level 1: Valid Anagram
Strings & Hash Maps•Easy
+100 XP
Level 2: Container With Most Water
Two Pointers•Medium
+150 XP
Level 3: Search in Rotated Sorted Array
Binary Search•Medium
+200 XP
Level 4: Reversing a Linked List
Linked Lists•Easy
6
Level 5: LRU Cache Implementation
Data Structure Design•Hard
9
Binary Search Reward: +200 XP & 2 Stars
Level 3: Search in Rotated Sorted Array
Given a rotated sorted array and a target, return its index in O(log n) time.
Node Challenge Question
When applying Binary Search on a rotated sorted array [4, 5, 6, 7, 0, 1, 2], how do you determine which half is normally sorted?