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.
Factorize THIS, buddy
Create a square matrix of multiples
Remove the two elements next to NaN value
Find the logic
Product of all elements in an array
Check if there are white spaces in the input string
Sum of unique multiples of 3 and 5
Check for keywords
Percentage of zeros in a matrix of only 1s and 0s
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