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Challenge: Find the Celebrity

Explore how to determine if a celebrity exists among a group based on matrix data using stacks and queues. Understand the problem constraints and develop an approach to efficiently identify the person known by everyone but who knows no one, strengthening your problem-solving skills for coding interviews.

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Statement

In a gathering of NN individuals (labeled from 00 to N1N-1), there’s a possibility of one person being a celebrity. A celebrity is characterized by being known by everyone else and not knowing any attendees. This scenario is represented using an N×NN \times N binary matrixmatrix ...