C++ Friend Question:
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What is the output of this program?

#include <iostream>
using namespace std;
class base
{
int val1, val2;
public:
int get()
{
val1 = 100;
val2 = 300;
}
friend float mean(base ob);
};
float mean(base ob)
{
return float(ob.val1 + ob.val2) / 2;
}
int main()
{
base obj;
obj.get();
cout << mean(obj);
return 0;
}
a) 200
b) 150
c) 100
d) 300

C++ Friend Interview Question
C++ Friend Interview Question

Answer:

a) 200

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What is output of this program?

#include <iostream>
using namespace std;
class sample
{
private:
int a, b;
public:
void test()
{
a = 100;
b = 200;
}
friend int compute(sample e1);
};
int compute(sample e1)
{
return int(e1.a + e1.b) - 5;
}
int main()
{
sample e;
e.test();
cout << compute(e);
return 0;
}
a) 100
b) 200
c) 300
d) 295		Where does keyword 'friend' should be placed?
a) function declaration
b) function definition
c) main function
d) None of the mentioned