Problem
Write a function to perform a breadth-first search (BFS) on a graph.
Practicing as: Software Engineer interview at ALEX - Alternative ExpertsHi, I'll play your ALEX - Alternative Experts interviewer for the Software Engineer role. Candidates describe these interviews as mostly positive and moderately difficult, so expect me to be friendly and conversational. Take your time with the question above and answer like we're in the room.
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