6. What is the output of this program?
   

   #include <iostream>
       #include <list>
       #include <queue>
       using namespace std;
       int main()
       {
           queue<char> que;
           que.push('I');
           que.push('L');
           que.push('U');
           cout << que.front() << " ";
           que.pop();
           cout << que.front() << " ";
           que.pop();
           cout << que.front();
           que.pop();
       }
   

1. 1. L U I

   
   
   

   2. I U L

   
   
   

   3. L I U

   
   
   

   4. I L U

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   In this program, We used the queue to process the given input.

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7. What is the output of this program?
   

   #include <iostream>
       #include <vector>
       using namespace std;
       int main()
       {
           vector<int> vect;
           vect.assign( 5, 50 );
           for (int k = 0; k < vect.size(); k++) 
           {
               cout << vect[k] << " ";
           }
       }
   

1. 1. 50

   
   
   

   2. 50 50

   
   
   

   3. 50 50 50

   
   
   

   4. 50 50 50 50

   
   
   

   5. 50 50 50 50 50

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   In this program, We used the vector to print the 50 for 5 times.

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8. What is meant by vector in the container library contains?

1. 1. It is a sequence container that encapsulates static size arrays

   
   
   

   2. It manages the memory

   
   
   

   3. It is a sequence container that encapsulates dynamic size arrays

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   vector in the container library contains sequence container that manipulates and encapsulates dynamic size arrays.

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9. Which is best for coding the standard library for c++?

1. 1. complex objects are returned by value

   
   
   

   2. have a member-swap()

   
   
   

   3. no trailing underscores on names

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   * complex objects are returned by value.
   * have a member-swap().
   * no trailing underscores on names.

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10. Pick out the wrong header file about strings.

1. 1. <ios>

   
   
   

   2. <string>

   
   
   

   3. <regex>

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   The standard header files for string is string and regex. So the wrong one presented here is ios.

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