Count how many times given word x repeats in text.
The phrasing of the Problem Statement is not correct. The string "When you finish ..., you will be told .... You can then .... You can also ...." contains FOUR instances of the WORD "you". "You", "YOU" and "you" are all examples of the _word_ "you". The Problem Statement should say that the player must find occurrences of the provided text-pattern of the same case within the given text.
Convert a vector into a number
Sum the 'edge' values of a matrix
Reverse a string
Find the sum of n squares
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
Find Euclidean norm of given vector u.
Divide polynomial p1 by p2.
Convert array of decimal numbers into hexadecimal numbers array.
Find product of eigenvalues of n*n magic matrix.
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