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Given a matrix with 1s and 0s ?

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Given a matrix with 1s and 0s, please find the number of groups of 1s. A group is defined by horizontally or vertically adjacent 1s.

posted Dec 12, 2013 by Gaurav Sharma

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1 Answer

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We can view this question as Find Number of connected components in a graph? in which vertices are matrix positions with one's and edges are horizontally or vertically adjacent 1s

Now our aim is to find the number of connected components
We can do this by using DFS or BFS in a graph.

answer Dec 26, 2013 by Raghu
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