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#include <iostream>
using namespace std;
int factorial(int n) {
cout << "entering factorial(" << n << ')' << endl;
if (n == 1) {
cout << "leaving factorial(1) with return value 1" << endl;
return 1;
}
int result = n * factorial(n - 1);
cout << "leaving factorial(" << n <<
") with return value " << result << endl;
return result;
}
int main() {
cout << factorial(3) << endl;
return 0;
}
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