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.
Make a Palindrome Number
The Goldbach Conjecture, Part 2
Check if sorted
Create a Matrix of Zeros
Percentage of zeros in a matrix of only 1s and 0s
find number of times of occurrence of the most frequent number in a row vector
convert the number to binary format & count digits
Find NaNs in the matrix
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