Just to clarify the problem statement: the objective of this problem seems to be to determine the number of unique vowels used in the given string.
Correct output for Laboratory is 3.
Create a vector whose elements depend on the previous element
Number of Horns on a unicorn!
Reverse the elements of an array
Number of odd and even elements within matrix
Generate binary combinations for a given number of bit(s)
Diagonal & Anti-Diagonal Matrix: Easy
ZigZag matrix with reflected format
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