Input(s) - any string
Output(n) - number of digits within string s
Additional test cases have been added.
Find state names that end with the letter A
Renaming a field in a structure array
Reverse the vector
Flip the main diagonal of a matrix
Do Fast Fourier Transformation
Vector of numbers divisible by 3
Create matrix with Gray code
Volume and area of a sphere
Return area of square
Can I make a right triangle ?
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