脸熟店面

  1. https://leetcode.com/problems/remove-invalid-parentheses/
  2. https://leetcode.com/problems/verifying-an-alien-dictionary/

两题30分钟做完

Interview went for 45 mins:
5 mins - Introduction
30 mins - Solve Problems
5 mins - Any questions

The expectation was to solve 2 (1 easy & 1 medium LC) questions in 30 mins.
Can you walkthrough the problem with example, come up with brute force approach, optimize, code and test in 15 mins?