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With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones:

A = [1 2 3 3 2 1]

B = [1 1 1 1 1 1 1 2 3 1 1 3 2 1 1 1 1 1 1 1]

or

A = 4

B = [ 1 1 1 1 4 1 1 1 1]

108 correct solutions
32 incorrect solutions

Last solution submitted on Jul 14, 2015

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