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".
Times 2 - START HERE
Find the sum of the elements in the "second" diagonal
CONVERT TAN TO SIN
Side of a rhombus
Sum of series I
Can I make a right triangle ?
Mean and standard deviation of times in string
Return area of square
Create matrix with Gray code
Volume and area of a sphere
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