Every complete C++ program must have a _____.

#include<iostream>

using namespace std;

int main()

{

  int x=3, y=6;

  cout<<++x<<" "<<y--<<endl;

 return 0;

}

In Linux, how are the heap and stack memory areas managed?

#include int main() { unsigned int i = 65000; while (i++ != 0); printf("%d", i); return 0; }

The ________ function returns the number of characters that are present before the terminating null character.

What is the value of the following 8-bit integer after all statements are executed?

1. int x = 1;
2. x = x << 7;
3. x = x >> 7;

What is the difference between the Exit() function and the return statement?

In C++, the purpose of a pure virtual function is:

Given the variables p, q are of char type and r, s, t are of int type. Select the right statement?

   1. t = (r * s) / (r + s);
   2. t = (p * q) / (r + s);

What will be the output of the following C++ code?

#include <iostream>
#include <type_traits>
using namespace std;
class Base
{
public:
virtual void function1() {};
virtual void function2() {};
};
int main()
{
Base b;
cout << sizeof(b);
return 0;
}