Spookily similar to Problem 381 ("Angle between two vectors")....
The Hitchhiker's Guide to MATLAB
Back to basics 14 - Keywords
Return the first and last character of a string
Is the input divisible by 3?
Unique: Enhanced Performance - Large and Wide Array - Speed Improvement (66% savings)
Rubik's Cube: 30 Moves or Less : Contest Scoring (Time/Size/Moves)
GJam 2015 Rd1B: Noisy Neighbors
DNA Pattern Match: Performance Metric - Speed
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