First round: Telephonic Interview.
The only question asked was this:
Given a string with brackets and alphanumerics, remove the extra brackets.
ex :
(lo))nd(o)n - > (lo)nd(o)n
gol(dm((a)n - > goldm(a)n or gol(dma)n

https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses/