Technically, L1 & L2 are line segments, and L3 & L4 are polylines.
Return elements unique to either input
Longest run of consecutive numbers
Replace Vector Elements
Calculate the Hamming distance between two strings
Sum the Digits of a Number
Do the line-segments intersect?
Convert hex color specification to MATLAB RGB
Beads on a Necklace (Convex Hulls)
Spot the rectangle (Part 2)
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