very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Determine Whether an array is empty
Given a window, how many subsets of a vector sum positive
Check if number exists in vector
Verify Law of Large Numbers
Fast 1-D Convolution (full shape)
Fast 1-D Convolution (same shape)
Apply Function to Each Field of a Structure Array: Part 2
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