Adjacency matrix of an undirected graph is given. Return the number of connected components in the graph.
Test case 2 matrix is not symmetrical. Can't be the adjacency matrix of an undirected graph.
yes.. fixed it
Make a 1 hot vector
Who invented zero?
Do Fast Fourier Transformation
The sum of the numbers in the vector
possible ways through matrix
longest common substring : Skipped character version
Largest Geometric Series
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