Day 27 || Find Peak Element in Mountain array|| leetCode 852 || DSA live with me || binary search

You are given an integer mountain array arr of length n where the values increase to a peak element and then decrease. Return the index of the peak element. Your task is to solve it in O(log(n)) time complexity. 00:00 - Introduction and audio setup 03:56 - Problem analysis and mountain array definition 05:31 - Choosing Binary Search for O(log n) complexity 08:24 - Explanation of start, end, and mid pointers 13:01 - Visualizing the peak element condition 15:14 - Setting up pointers in the code 20:21 - Handling integer overflow for mid calculation 27:56 - Logic for navigating array slopes 37:26 - Coding refinements and interview advice 51:11 - Full code dry run and logic debugging 1:16:46 - Successful LeetCode submission 1:18:21 - Future plans and closing remarks