A rotated sorted array is an array that was originally sorted but then rotated at some pivot. The task is to find the minimum element efficiently in O(log n) time instead of scanning the entire array.
In this video, we will learn:
What a rotated sorted array is
How to identify the pivot point where rotation happens
The binary search intuition to detect the unsorted half
Why we move left = mid + 1 or right = mid
Step-by-step dry run with examples
Time and space complexity analysis
Clean implementations in C++, Java, and Python
This is a very common interview question asked in companies like Amazon, Google, Microsoft, and Uber. It also helps in understanding other rotated array problems like Search in Rotated Sorted Array.
Watch till the end to fully understand the binary search pattern used to find the minimum element in a rotated sorted array.
Rising Brain (DSA Sheet):
https://www.risingbrain.org/sheet
Connect with me here:
LinkedIn – / anjalikumari22
Instagram – / rbanjali.codes
Twitter (X) – https://x.com/anjali1kumari?s=21