The problem's figure is missing. We can use our solution for problem 1720 (https://nl.mathworks.com/matlabcentral/cody/problems/1720-do-the-lines-intersect). However, line matrices are transposed in this problem. And for the picture, we can imagine an instance of Buffon's needle problem without horizontal lines.
Back to basics 23 - Triangular matrix
We love vectorized solutions. Problem 1 : remove the row average.
frame of the matrix
Is it a number?
Bleed non-zeros to the right
Operate on matrices of unequal, yet similar, size
Wrap a vector, but insert NaN's at the wrap-positions.
Return 'on' or 'off'
Number of problems
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