Back to basics 18 - justification
frame of the matrix
Switch matrix to a column vector
Deleting an element in a matrix
It's race time! Write a faster function than the test suite call of unique().
RISK board game battle simulation
It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
Determine the number of odd integers in a vector
Penny flipping - calculate winning probability (easy)
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