Test case 2 matrix is not symmetrical. Can't be the adjacency matrix of an undirected graph.
yes.. fixed it
vectorization in N
Better bullseye matrix
Return the first and last character of a string
Will there be a new leader?
Number of digits in an integer
all possible subsets of set
Integer Sequence - II : New Fibonacci
Integer Sequence - 1
Graph Algorithms - 2 : Chromatic Number
Integer sequence - 2 : Kolakoski sequence
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