C++ interview questions part 60
C++ interview questions part 60
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Total Questions: 20
1. How many types of models are available to create the user-defined data type?
Correct Answer is : My exception
2. What is Valarray in C++?
Correct Answer is : Depends on memory
3. Which of the following is correct about Valarray?
Correct Answer is : 0
4. Which header file is required for using Valarray?
Correct Answer is : Caught: bad_cast exception
5. What is the use of apply() function in Valarray?
Correct Answer is : The object is null
6. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
Valarray varr = { 10, 2, 20, 1, 30 };
for (int &x: varr) cout << x << " ";
cout<
Correct Answer is : dynamic allocations
Correct Answer is : dynamic allocations
7. What is the use of sum() function in Valarray?
Correct Answer is : Both Memory allocation errors & I/O errors
8. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
Valarray varr = { 10, 2, 20, 1, 30 };
cout<<"Sum of array: "<
Correct Answer is : algorithm
Correct Answer is : algorithm
9. What is the function of shift()?
Correct Answer is : mismatch
10. Which of the following is correct about the shift?
Correct Answer is : Form a heap
11. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
Valarray varr = { 1, 2, 3, 4, 5 };
for (int &x: varr) cout << x << " ";
cout<
Correct Answer is : 8
Correct Answer is : 8
12. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
Valarray varr = { 1, 2, 3, 4, 5 };
for (int &x: varr) cout << x << " ";
cout<
Correct Answer is : 3 4 4 0
Correct Answer is : 3 4 4 0
13. Which of the following is correct about shift() and cshift()? 1) shift() makes some values of Valarray equal to 0 after shifting by a non-zero number 2) cshift() makes some values of Valarray equal to 0 after shifting by a non-zero number
Correct Answer is : 5 4 3 2 1
14. What is the output of the following C++ code?
#include
#include
using namespace std;
int main()
{
Valarray varr = { 1, 2, 3, 4, 5 };
for (int &x: varr) cout << x << " ";
cout<
Correct Answer is : 45354
Correct Answer is : 45354
15. Which function is used to swap two Valarray?
Correct Answer is : 10, 30, 30, 10, 10
16. Which function is used to print the maximum element from Valarray?
Correct Answer is : Bigger than others
17. How many types of returning values are present in c++?
Correct Answer is : All of the mentioned
18. What will you use if you are not intended to get a return value?
Correct Answer is :
19. Where does the return statement returns the execution of the program?
Correct Answer is : all of the mentioned
20. When will we use the function overloading?
Correct Answer is : none of the mentioned
