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Welcome to the Objects and Iterators in C++ MCQs Page

Dive deep into the fascinating world of Objects and Iterators in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Objects and Iterators in C++, a crucial aspect of Object Oriented Programming Using C++. In this section, you will encounter a diverse range of MCQs that cover various aspects of Objects and Iterators in C++, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming Using C++.

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Check out the MCQs below to embark on an enriching journey through Objects and Iterators in C++. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming Using C++.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Objects and Iterators in C++. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Objects and Iterators in C++ MCQs | Page 7 of 15

Q61.
Which value is pointed out first in heap?
Discuss
Answer: (b).Highest value
Q62.
Which operator is used to compare the elements in heap?
Discuss
Answer: (d).Both comp &<
Q63.
What is the output of this program?
    #include <iostream>
    #include <algorithm>
    #include <vector>
    using namespace std;
    int main () 
    {
        int myints[] = {10, 20, 30, 5, 15};
        vector<int> v(myints, myints + 5);
        make_heap (v.begin(), v.end());
        pop_heap (v.begin(), v.end()); v.pop_back();
        v.push_back(99); push_heap (v.begin(), v.end());
        sort_heap (v.begin(), v.end());
        for (unsigned i = 0; i < v.size(); i++)
            cout << ' ' << v[i];
        return 0;
    }
Discuss
Answer: (c).5 10 15 20 99
Q64.
What is the output of this program?
    #include <iostream>
    #include <algorithm>
    #include <vector>
    using namespace std;
    int main () 
    {
        int myints[] = {1, 2, 3, 4 ,5};
        vector<int> v(myints, myints + 5);
        v.push_back(33); 
        push_heap (v.begin(),v.end());
        cout << v.front() << '\n';
        sort_heap (v.begin(),v.end());
        return 0;
    }
Discuss
Answer: (b).33
Q65.
What is the output of this program?
    #include <iostream>
    #include <algorithm>
    #include <vector>
    using namespace std; 
    int main ()
    {
        int myints[] = {2, 4, 6, 8, 10};
        vector<int> v(myints, myints + 5);
        make_heap (v.begin(),v.end());
        cout  << v.front() << '\n'; 
        return 0;
    }
Discuss
Answer: (a).10
Q66.
What is the output of this program?
    #include <iostream>
    #include <algorithm>
    #include <vector>
    using namespace std;
    bool myfunction (int i,int j) { return (i<j); }
    int main () 
    {
        int myints[] = {9, 8, 7, 6, 5};
        vector<int> myvector (myints, myints + 5);
        partial_sort (myvector.begin(), myvector.begin() + 3, myvector.end());
        partial_sort (myvector.begin(), myvector.begin() + 2, myvector.end(), 
        myfunction);
        for (vector<int> :: iterator it = myvector.begin(); it != myvector.end(); ++it)
            cout << ' ' << *it;
        return 0;
    }
Discuss
Answer: (b).5 6 7 9 8
Discuss
Answer: (d).All of the mentioned
Q68.
In what form does the STL provides heap?
Discuss
Answer: (d).priority_queue
Q69.
How many types are there in binary heaps?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q70.
Which keyword is used to declare the min and max functions?
Discuss
Answer: (c).algorithm

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