Question: Java or C++ program help. Language SumXY is defined recursively as: (1) Integers 17 and 43 are in SumXY. (2) If x and y are

Java or C++ program help.

Language SumXY is defined recursively as:

(1) Integers 17 and 43 are in SumXY.

(2) If x and y are in SumXY, then so is x + y.

Encode SumXY as a Boolean recursive function.

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