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TIMESTAMPS
00:00 Intro
03:30 Question Starts: Introduction
06:50 When would the map be invalid
11:30 Write a function for Employee Score Assuming Valid Map
19:00 Improve Efficiency of Function
21:40 Function in O(1) Time
32:24 Write a function to validate for one of the 3 invalid cases
47:02 Review and Feedback
59:26 Questions for Interviewer