Input(s) - any string
Output(n) - number of digits within string s
Additional test cases have been added.
Reverse the vector
Magic is simple (for beginners)
find radius of cone
Calculate the derivative of a polynomial
Deleting an element in a matrix
Relative ratio of "1" in binary number
Volume and area of a sphere
Vector of numbers divisible by 3
Mean and standard deviation of times in string
Make a vector of prime numbers
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