One of the hardest concept asked in the entrance exams and interview of FAANG(Facebook , Amazon , Apple , Netflix and Google), explained in the easiest way. It also falls in the category of FANG obsessive topics because of its logical recursion replacement.
FANG’s obsessive topics or topics from the competitive programming which FANG is so obsessed with! these days. Google, Facebook, Microsoft, Netflix, and Amazon have kept on asking questions over these three topics from the past couple of months in their coding rounds
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