Had phone screen last week (originally aimed at E5).
Valid palindrome or not allowing one character: https://leetcode.com/problems/valid-palindrome-ii
Find peak element: https://leetcode.com/problems/find-peak-element/description/
Took hints and struggled a bit for the first one :( .
Recruiter mentioned they will evaluate for both E4 and E5 in onsite loop, which is vague. Did anyone who interview for E5 also have a similar loop.
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