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.
Which doors are open?
Test for balanced parentheses
Sum all integers from 1 to 2^n
Back to basics 1 - Saving
Implement simple rotation cypher
Wayfinding 3 - passed areas
Add a row of zeros on top of a matrix
Insert certain elements into a vector.
Create incremental spiral WITHOUT USING EVAL or FEVAL
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