What is the output of the following program? What well-known mathematical function is rose?
using namespace std;
int rose(int n);
//Precondition: n >= 0.
int main( )
{
cout << rose(4);
return 0;
}
int rose(int n)
{
if (n <= 0)
return 1;
else
return ( rose(n − 1) * n );
}
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