Very creative usage of blkdiag in collaboration with conv2. I prefer nnz over "any" for speed and compactness.
Project Euler: Problem 7, Nth prime
Scoring for oriented dominoes
Flip the main diagonal of a matrix
Determine the number of odd integers in a vector
Find mistyped words in text (mixed-up letters)
Change a specific color in an image
How many figures currently exist?
Create an 8-color version of an image
Extra safe primes
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