[ INFO ]category: Behavioral · Phone Screen difficulty: medium freq: first seen: 2024-03-22
[MEDIUM][PHONE SCREEN]Phone ScreenE3Unknown
$catproblem.md
Meta Phone Screen
Questions:
Sum of Nodes with Even-Valued Grandparent. The test case was identical to the problem. I initially proposed a solution with O(N) space complexity using a map to store parents. However, the interviewer requested a solution that did not use O(N) space. I successfully developed an alternative solution.
A variation of Max Consecutive Ones III. Instead of ones and zeros, the problem involved W (work days) and H (holidays), along with a given number of PTO days. The goal was to determine the longest possible holiday block. I implemented a sliding window technique, but my initial approach had O(N^2) time complexity. The interviewer provided a helpful hint, enabling me to optimize the solution to O(N) time complexity.