Explore topic-wise MCQs in C++ Programming.

#include 
 using namespace std;
 namespace One
 {
 int num = 12;
 }
 namespace Two
 {
 double num = 10.027;
 }
 int main ()
 {
 int n;
 n = One::num + Two::num;
 cout << n;
 return 0;
 }

#include 
 using namespace std;
 namespace calculation
 {
 int p;
 }
 void p()
 {
 using namespace calculation;
 int p;
 p = 15;
 cout << p;
 }
 int main()
 {
 enum letter { K, L};
 class K { letter L; };
 ::p();
 return 0;
 }

#include 
 using namespace std;
 namespace calc
 {
 int p = 12;
 }
 namespace calc
 {
 int q = 23;
 }
 int main(int argc, char * argv[])
 {
 calc::p = calc::q =6;
 cout << calc::p << calc::q;
 }

#include 
 using namespace std;
 namespace first
 {
 int num = 5;
 }
 namespace second
 {
 int num = 11;
 }
 int main ()
 {
 int num = 27;
 first::num;
 second::num;
 cout << num;
 return 0;
 }

#include 
 using namespace std;
 namespace One
 {
 int K = 15;
 int L = 11;
 }
 namespace Two
 {
 double K = 4.016;
 double L = 7.6001;
 }
 int main ()
 {
 using One::K;
 using Two::L;
 bool p, q;
 p = K > L;
 q = One::K < Two::L;
 cout << p < return 0;
 }