very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Who Has the Most Change?
Most nonzero elements in row
Factorize THIS, buddy
Swap the input arguments
Compute Fibonacci Number
Group-wise Euclidean distance
Toeplitize a matrix
Words Count: A Cell Array Approach
The Top 5 Primes
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