c++

Question 1

Consider the following program:

#include iostream

using namespace std;

int addition(int, int);

int subtraction(int, int);

void directions();

void printResult(int, int, int, char);

int main ()

{

int x,y,r;

directions();

cout << "Please enter the first integer: "<<;

cin >> x;

cout << "Please enter the second integer: ";

cin >> y;

r = addition(x,y);

printResult(x,y,r,+);

r = subtraction(x,y);

printResult(x,y,r,-);

system("pause");

return 0;

}

int addition(int a, int b)

{

int r;

r=a+b;

return r;

}

int subtraction(int a, int b)

{

int r;

r=a-b;

return r;

}

void directions()

{

cout << ********************************************************" << endl

<< "Hello!" << endl

<< "This Program asks the user for two integers, then prints the sum and difference" << endl

<< "****************************************************** << endl << endl;

}

void printResult(int a, int b, int result, string operation)

{

cout << a < " " << operation << " " << b << " = " << result << endl;

}

1.1) How many functions are defined in this program, including the main() function

1.2) Give the prototype of each function.

1.3) Give the arguments of each function.

1.4) Give the parameters of each function.

1.5) Compile the program and fix all errors that may occur. Complete test plan. Run the program and fill in the remainder of your test plan.