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Nice usage of a simpler matrix for convolution (ones(3)) and readjustment of the logical conditions.
Find the two-word state names
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Return 'on' or 'off'
Is this triangle right-angled?
Connect blocks in a model
Sums with Excluded Digits
Return the 3n+1 sequence for n
Find the two most distant points
Add two numbers
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