Return an object that helps this problem's test suite return Cody's screen size.
Find the largest value in the 3D matrix
Getting logical indexes
create a circulant matrix
Penny flipping - calculate winning probability (easy)
Find sum of negative elements in row.
Persistence will not help you solve this problem.
How do you make seven even?
calculate the day of the year from a date string.
What's my favourite food?
A little bit of luck needed
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