The phone-screen question was LeetCode 947. I implemented it using breadth-first search.
Near the end, my code still had two bugs. I found one of them myself, while the interviewer pointed out the other one. After that, I ran the test cases. By the time the tests were finished, there was no time left in the interview.
I do not know whether the interviewer had prepared a follow-up question, because we never reached one.
Two days after the phone screen, I received a rejection.
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