Its a good problem. Got me back to solving problems at Cody after about 2 months!
Filter AC, pass DC
vectorization in N
Rotate input square matrix 90 degrees CCW without rot90
Say something funny
Return area of square
Back to basics 4 - Search Path
Back to basics 13 - Input variables
Toolbox check part 3
Back to basics 8 - Matrix Diagonals
Back to basics 23 - Triangular matrix
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