Input(s) - any string
Output(n) - number of digits within string s
Additional test cases have been added.
Add two numbers
Find state names that start with the letter N
Distance walked 1D
Sum of diagonal of a square matrix
Doubling elements in a vector
Volume and area of a sphere
Make a vector of prime numbers
Can I make a right triangle ?
Number of odd and even elements within matrix
Return area of square
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