incorrect test's cases.
include  in answer...
thanks for reminding
Duplicate each element of a vector.
sum of non-primes
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
Change matrix to vector
Output a vector which is table of 9
Roots of quadratic equation
Throw common elements of two vector arrays
Calculate Simple Intrest for given data
Delete blanks at the end of string
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