Explore topic-wise MCQs in C++ Programming.

#include 
 using namespace std;
 int main()
 {
 /* this is comment* 
 cout << "Interview Mania";
 return 0;
 }

#include 
 using namespace std;
 int add(int p, int q);
 int main()
 {
 int k = 7, L = 9;
 cout << add(k, L) << endl;
 return 0;
 }
 int add(int p, int q )
 {
 int sum = p + q;
 p = 10;
 return p + q;
 }

#include 
 using namespace std;
 void square (int *p)
 {
	*p = (*p + 3) * (*p);
 }
 int main ( )
 {
	int n = 15;
 square(&n);
	cout << n;
	return 0;
 }

#include 
 using namespace std;
 long fact (long p)
 {
 if (p > 1)
 return (p * fact (p + 1));
 else
 return (1);
 }
 int main ()
 {
 long n = 6;
 cout << n << "! = " << fact ( n );
 return 0;
 }