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.
Equal to their cube
04 - Scalar Equations 3
Repeat the entries of the vector to their reference times in the vector.
Remove collinear points in a set of 2D points defining a polygon
Non trivial identities - differentiation
Geometrical meaning of determinant
Simple polynomial evaluation
Non trivial identities - summation
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