In a given input string, count and return the number of upper and lower case characters as u and l respectively.
in 'This is a Test Case'
ans= [u,l]= [3,12]
Additional test cases have been added.
Clean the List of Names
Sum of series I
Sum of series III
surface areas of a cylinder
Nth root of a number
Basics: counting digits of a number irrespective of the sign
basic matrix operations: rotate and find sum of diagonal elements of the resultant matrix
Repetition of matrices
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