There is no check on test-case number 2. ;-)
Ooops. Thanks José.
Swap the input arguments
Rotate input square matrix 90 degrees CCW without rot90
length of a vector
Polite numbers. N-th polite number.
Don't Try, give up and return NaN.
Calculate the Damerau-Levenshtein distance between two strings.
Cut an orange
How many solutions has this problem?
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