In C++, the & symbol after the type in the parameter list does what? The &...

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In C++, the & symbol after the type in the parameter list does what? The &...

In C++, the & symbol after the type in the parameter list does what?

		The & symbol alerts the compiler that the parameter is call by reference.
		The & symbol alerts the compiler that the parameter is call by value.
		The & symbol alerts the compiler that the parameter is a placeholder.
		The & symbol alerts the compiler to swap the actual and formal parameter.

Given: f(n) = nf(n-1) for n>1

f(1)=1

What is f(5)?

		120
		24
		15
		121

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Answer 1

Answer #1

In C++, the & symbol after the type in the parameter list does what?

The & symbol alerts the compiler that the parameter is call by reference.

symbol & is used in C++ as an address operator.If you take the address of a reference, it returns the address of its target. We can use & for call by refference.

Given: f(n) = nf(n-1) for n>1

f(1)=1

What is f(5)?

120 is the correct answer.

Add a comment

Answer 2

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