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Problem Count the number of islands (connected groups of 1s) in a 2D binary grid using DFS or BFS. Likely LeetCode equivalent Directly matches Number of Islands (LC 200). Tags graph, matrix, bfs, dfs, whatnot
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This is a reported interview question from a whatnot interview during the phone round.
It covers the following topics: Phone, Graph, Coding, Onsite, Matrix .
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