My interview process took 1.5 months.

I didn't finish it because I received another offer. However, the recruiters and interviewers were extremely nice, very understanding, and flexible.

If I hadn't received an opportunity to relocate from another company, I would have liked to work with these people.

There is a binary tree where each node contains left child, right child, and parent node information. Find the common ancestor for two nodes.

There is a sorted array. Find the index of the first and last symbol appearance.

There is an array of integers. Find the longest chain of decreasing or increasing elements.