Usual 5 min introduction followed by an easy and a medium questions.

Q1: https://leetcode.com/problems/binary-tree-right-side-view/
Q2: Remove invalid parenthesis from a string that may contain alphanumerics, ) and (
Ex. ab(1(d) -> ab(1d)

Managed to solve both the questions in 35 minutes with optimum time and space complexity.

Heard back from the recruiter after 2 days that I was through and they will be moving me to the virtual onsite.