They all got through the interview process so I&#x27;m pretty confident about 80% of them would be able to do it and 100% of them would be able to implement BFS.<p>Also yes it&#x27;s a basic graph algorithm everyone learns, but its inherently much more complicated than BFS which is a simple traversal. It&#x27;s like bubble sort vs radix sort ... which makes this kind of a loaded question.