688-521=167 Got wrong!
vectorization in N
Spot the outlier
Speed of car
It's race time! Write a faster function than the test suite call of unique().
It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
Calculate the probability that at least two people in a group share the same birthday.
Create matrix of replicated elements
Determine the number of odd integers in a vector
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