The problem says the input is a positive integer but the first test inputs 0. In my code that caused r = 0/0 error. Please change the wording to "input is non-negative".
01 - Scalar variables
Sum of the Matrix Elements
Area of a circle
Divide by 4
Volume and area of a sphere
Return area of square
Vector of numbers divisible by 3
Number of odd and even elements within matrix
Make a vector of prime numbers
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