Binary Search pattern
Search in Rotated Sorted Array
Given an ascending sorted array that has been rotated at an unknown pivot, find the index of a target value in O(log n) time, returning -1 if it is not present. Watch it run step by step, then write your own pseudocode and get it checked by AI.
- LeetCode 33
- Medium
- 2 approaches
Sign in with Google or GitHub and you land straight on this page. DSA comes with the all labs plan and every ChaiCode batch.
Binary SearchLeetCode 33
Medium
From the first idea to the best one
- 01 Brute force · linear scan O(n)O(1) space
- 02 Optimized · steer by the sorted half O(log n)O(1) space
What you will learn
- How to read Search in Rotated Sorted Array and spot the binary search pattern in it
- Brute force · linear scan: O(n) time, O(1) space
- Optimized · steer by the sorted half: O(log n) time, O(1) space
- The pseudocode for each approach, its line lit as the animation runs
- Practice: write your own pseudocode and get it checked
More Binary Search
See Search in Rotated Sorted Array run, step by step
Sign in and this page opens on the animation, with all 11 Binary Search problems beside it.
DSA comes with the all labs plan and every ChaiCode batch.