C++ interview questions part 54
C++ interview questions part 54
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. In how many ways we can handle errors in any class?
Correct Answer is : References cannot refer to a constant value
2. Which type of heap is implemented in STL heap?
Correct Answer is : Copy Constructor
3. Which function is used to construct heap from given sequence of numbers?
Correct Answer is : 30
4. What is the use of front() function in heap?
Correct Answer is : Segmentation fault
5. Elements in STL heap are removed in ________________________
Correct Answer is : All of the mentioned
6. Which header file is required to use heap in your program?
Correct Answer is : A variable can have more than one references
7. Which of the following is correct syntax of making heap from a vector v?
Correct Answer is : All of the mentioned
8. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
int main(int argc, char const *argv[])
{
vector v = {1,5,23,90,15,35};
make_heap(v.begin(),v.end());
cout<
Correct Answer is : It cannot be accessed by any standard mean
Correct Answer is : It cannot be accessed by any standard mean
9. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
int main(int argc, char const *argv[])
{
vector v = {1,5,23,90,15,35};
make_heap(v.begin(),v.end());
v.push_back(110);
push_heap(v.begin(), v.end());
cout<
Correct Answer is : Segmentation fault
Correct Answer is : Segmentation fault
10. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
int main(int argc, char const *argv[])
{
vector v = {1,5,23,90,15,35};
make_heap(v.begin(),v.end());
v.push_back(110);
push_heap(v.begin(), v.end());
pop_heap(v.begin(), v.end());
v.pop_back();
cout<
Correct Answer is : 55
Correct Answer is : 55
11. What is the use of sort_heap() function in heap?
Correct Answer is : TestTest
12. Which function is used to check whether a given sequence is heap or not?
Correct Answer is : 10
13. What is the use of is_heap_until() function?
Correct Answer is : segmentation fault
14. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
int main(int argc, char const *argv[])
{
vector v = {1,5,23,90,15,35};
cout<
Correct Answer is : The form of automatic memory management
Correct Answer is : The form of automatic memory management
15. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
int main(int argc, char const *argv[])
{
vector v = {90, 47, 34, 23, 4, 35, 67};
auto it = is_heap_until(v.begin(), v.end());
for(auto i = v.begin(); i != it; i++)
cout<<*i<<" ";
}
Correct Answer is : both new & delete
16. What is meant by sequence point?
Correct Answer is : smart pointers
17. Pick out the correct statement about sequence point.
Correct Answer is : Information about an object’s data type at runtime
18. In sequence point, how will the overloaded operators behave like?
Correct Answer is : both dynamic_cast() & typeid
19. What do input and output objects support?
Correct Answer is : Polymorphic
20. What kind of execution does sequence point allow?
Correct Answer is : Null pointer on second type-cast
