what do i need to do to fix my code so the unit test and compare output work? in c++ please.

5.12 Factorial of an inputted integer Write a recursive function called factorial) to return the factorial of an integer that was inputted from keyboard The printing of output will be done in the main function The factorial of nis n' which is given by nie-7)(n-2) 2*1 Hence the factorial of 5 is 5X4X3X2X1 = 120. Similarly, the factorial of 4 is 4X3X2X1 = 24 ExIf the input is 5 the output is The factorial of 5 s 120 main.cpp 8 1 #include 2 using namespace std; 3 4 int factorial(int value) { 5 if(value > 1) 6 return value factorial(value - 1); 7 else return 1; 9) 10 11 int main() { 12 int num; 13 cin >> num; 14 15 cout Input 0 Your output The factorial of 0 is 1 4. Compare output 272 Input 1 Your output The factorial of 1 is 1 5. Unit test 073 Tests factorial) correctly to return factorial of inputted value Could not find valid return type for test Passed(). must be one of bool, int, float, or double 6. Compare output 071 Your output The factorial of 0 1 1 Expected output This test case should produce no output