Worst kinda screening for mindtickle, they ask you to share your screen and then they provide a leetcode problem, and they even check if the problem is submitted before, I don’t know what difference it makes. Do they want to test your problem solving skills or something else :P below questions are repeatedly asked to many candidates

https://leetcode.com/problems/find-mode-in-binary-search-tree/
https://leetcode.com/problems/unique-binary-search-trees-ii/

Use a new Account incase you gonna interview with them :P