Covering some basic topics I haven't seen elsewhere on Cody.
Given an input vector of numbers, output a square array with the vector as the main diagonal and all other elements = 0.
1 0 0 0
0 2 0 0
0 0 3 0
0 0 0 4
Implement a ROT13 cipher
07 - Common functions and indexing 3
Area of a circle
Make a full wave rectifier
Back to basics 16 - byte order
Back to basics 12 - Input Arguments
Back to basics 18 - justification
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