C++ interview questions part 46
C++ interview questions part 46
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
int main()
{
forward_list fl1 = {1,7,8,9,10};
forward_list fl2 = {2,3,4,5,6};
fl1.splice_after(fl1.begin(), fl2);
for (int&c : fl1)
cout << c << " ";
cout<
Correct Answer is : Friend function
Correct Answer is : Friend function
2. What are the vectors?
Correct Answer is : Member functions
3. Pick the incorrect statement.
Correct Answer is : Object
4. Which of the following header file is needed to use vectors in your program?
Correct Answer is : All of the mentioned
5. Which of the following(s) can be used to access the first element of a vector v?
Correct Answer is : Composition
6. Which of the following(s) can be used to access the last element of a vector v?
Correct Answer is : 2
7. What is the difference between begin() and cbegin() in vectors?
Correct Answer is : Using Inheritance and Virtual functions
8. What is the difference between begin() and rbegin()?
Correct Answer is : Using Templates
9. Which is the following is syntactically correct for vector v?
Correct Answer is : class
10. What is the outptu of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
vector :: const_iterator i;
for (i = v.begin(); i != v.end(); ++i)
cout << *i << " ";
cout<
Correct Answer is : Dynamic loading
Correct Answer is : Dynamic loading
11. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
vector :: iterator i;
i = v.begin();
*i = 3;
for (i = v.begin(); i != v.end(); ++i)
cout << *i << " ";
cout<
Correct Answer is : Ad-hoc polymorphism
Correct Answer is : Ad-hoc polymorphism
12. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
vector :: const_iterator i;
i = v.begin();
*i = 3;
for (i = v.begin(); i != v.end(); ++i)
cout << *i << " ";
cout<
Correct Answer is : Bottom-up
Correct Answer is : Bottom-up
13. Which of the following function is used to get the actual number of elements stored in vector?
Correct Answer is : <<
14. Which function is used to get the total capacity of a vector?
Correct Answer is : Constructors
15. How the size of a vector increases once it is full?
Correct Answer is : Virtual functions
16. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
cout<
Correct Answer is : C++ allows both static and dynamic type checking
Correct Answer is : C++ allows both static and dynamic type checking
17. Which function is used to check whether the vector is empty or not?
Correct Answer is : It reduced both testing and maintenance time
18. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
v.resize(4);
for (auto it = v.begin(); it != v.end(); it++)
cout << *it << " ";
return 0;
}
Correct Answer is : All of the mentioned
19. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
cout<
Correct Answer is : Neither I nor II
Correct Answer is : Neither I nor II
20. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
vector v;
for (int i = 1; i <= 5; i++)
v.push_back(i);
cout<
Correct Answer is : Distributive
Correct Answer is : Distributive
