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.
Return the first and last character of a string
02 - Vector Variables 5
Rotate matrix by -90 degrees
Divide polynomial p1 by p2.
Calculate roots of polynomial given as vector array.
Solve expression I
Opposite task convert binary numbers array into array of decimal numbers.
Calculate the values of a polynomial.
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