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Solved first using brute force: O(n log n)
Then optimized to O(n) using a single-pass DP approach.
Both approaches were discussed. -
Initially solved using DP.
The solution was accepted.
The expected approach from the interviewer was BFS using a queue, since the problem can be modeled as a shortest-path problem where each position is a state.
Did not switch to the expected BFS approach during the interview.Verdict: Rejected 🥲
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