Question: t n be an arbitrary integer. The C++ function sum(n) returns the sum of bits in the binary representation of n. For example, sum(6) must

t n be an arbitrary integer. The C++ function sum(n) returns the sum of bits in the binary representation of n. For example, sum(6) must return 2, because the binary version of 6 is 110. Similarly for 32-bit machine, sum(-1) must return 32. Write two versions of sum: the recursive version rsum and the iterative version isum. PO
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