Hi Marisa: Thanks for contributing some problems to Cody! I want to encourage you to make your problems more general so that there's more than just one input and out output. Maybe you could make this problem into something more like this: "Round the given number to the nearest integer." Then pass in several numbers, not just one.
Sum of diagonal of a square matrix
sum of non-primes
Calculate distance travelled when given radius and rotations
Find the area of the four walls
Deleting an element in a matrix
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