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.
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Doubling elements in a vector
Area of an Isoceles Triangle
multiply by three
ZigZag matrix with reflected format
~~~~~~~ WAVE ~~~~~~~~~
factor to number
Make combination of two given matrices.
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