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
Read a Soroban Abacus
Rotate a Matrix
Duplicate a character
Back to basics 19 - character types
Number of toolboxes?
Back to basics 7 - Equal NaNs
Back to basics 13 - Input variables
Back to basics 15 - classes
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