xAI Machine Learning Engineer Coding & Algorithms Interview Questions
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xAI
Medium
Machine Learning EngineerDesign O(1) random-sampling set
Design a data structure that supports insert(x), remove(x), and get_random() that returns a uniformly random element among the present items, all in e...
Coding & Algorithms
0
0
Sep 6, 2025
xAI
Medium
Machine Learning EngineerValidate normalized palindromes with variants
Implement a function isNormalizedPalindrome(s) that returns true if s reads the same forward and backward after removing non‑alphanumeric characters a...
Coding & Algorithms
0
0
Jul 17, 2025