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Grokking the Coding Interview Patterns in C#

Number of Provinces

Explore how to identify and count groups of directly or indirectly connected cities, known as provinces, by analyzing a connection matrix. Understand the problem constraints, practice implementing the solution, and develop skills to optimize your approach using graph traversal techniques for coding interviews.

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Statement

Given nn cities, some are directly connected, and others are not. You are given an n×nn \times n matrix called cities, where cities[i][j] =1= 1 means city ithi^{th} and city ...