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Grokking the Coding Interview Patterns in C#

Number of Provinces

Understand how to determine the number of provinces by identifying groups of directly or indirectly connected cities. Learn to analyze connectivity using adjacency matrices and implement an O(n²) time solution, improving your problem-solving skills 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 ...