Poorly stated question, as it is ambiguous as to whether it is asking for the number of red balls that have been observed or the number that remain in the urn. Oh, "discarded" is spelled with a d. That much I can fix.
Agree with John D'Errico that the Problem Statement is ambiguous. For the record, based on case 5 of the Test Suite, it must be the _observed_ number of red balls that is to be computed.
Return the first and last characters of a character array
Fibonacci-Sum of Squares
Calculate some equation
Find scalar product of two polynomials a and b, given as vector array.
Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Find the diagonal of the square of side L
Non trivial identities - reshape
Remove collinear points in a set of 2D points defining a polygon
Simple polynomial evaluation
Probabilities - More brains than luck
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