Please clarify : Outside surface of a tube or the inner on aswell
Volume of the entire tube or minus the hollow part
For surface area: Both inner + outer are included. For volume: subtract the hollow part.
Finding Perfect Squares
Return a list sorted by number of occurrences
Replace multiples of 5 with NaN
Extra safe primes
Crop an Image
Pitting corrosion on a metal plate: Find the largest pit
Design a minimum-cost cable network for a power grid
Assess the scatter of wind turbines in a field
Count the number of folds needed to pack a large sheet
Characterize fluid flow in a pipe as to laminar or turbulent
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