The interview process was conducted in two rounds.

1. Coding test round: There were two questions. The questions were medium level, and I was able to solve both.

2. Interview: This was fully based on Data Structures. The questions were medium level. I answered the first question pretty well, but I was not able to code the second question, so I was rejected.

Single Element in a Sorted Array (Medium)

You are given a sorted array consisting of only integers where every element appears exactly twice, except for one element which appears exactly once.

Return the single element that appears only once.

Your solution must run in O(log n) time and O(1) space.

https://leetcode.com/problems/single-element-in-a-sorted-array/description/

Convert Sorted Array to Binary Search Tree

Given an integer array nums where the elements are sorted in ascending order, convert it to a height-balanced binary search tree.

https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/description/