Standard Template Library (STL) in C++ MCQ question and answer with solution

Section 1 Section 2

51.
Pick out parameter for rehash method in unordered_set in c++?

A. count

B. size

C. hash

D. type

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52.
What are Container Adaptors?

A. Containers that implements data structures which can be accessed sequentially

B. Containers that implements sorted data structures for fast search in O(logn)

C. Containers that implements unsorted(hashed) data structures for quick search in O(1)

D. Containers that provide a different interface for sequential containers

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53.
What are Unordered Associative Containers?

A. Containers that implements data structures which can be accessed sequentially

B. Containers that implements sorted data structures for fast search in O(logn)

C. Containers that implements unsorted(hashed) data structures for quick search in O(1)

D. Containers that implements data structures which can be accessed non-sequentially

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54.
How does the limits.h header file can be represented in C++?

A. limits

B. limit

C. climits

D. dlimits

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55.

What will be the output of the following C++ code?

#include <iostream>
#include <vector>
using namespace std;
int main()
{
    vector<int> v;
    v.assign( 10, 42 );
    for (int i = 0; i < v.size(); i++) 
    {
        cout << v[i] << " ";
    }
}

A. 42

B. 42 42

C. 424

D. 42 for 10 times

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56.
Pick out the wrong header file.

A. <algorithm>

B. <containers>

C. <iterators>

D. <process>

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57.

What will be the output of the following C++ code?

#include <stdio.h>    
#include <stdlib.h>
int main ()
{
    char s[] = "365.24 29.53";
    char* p;
    double d1, d2;
    d1 = strtod (s, &p);
    d2 = strtod (p, NULL);
    printf ("%.2f\n", d1/d2);
    return 0;
}

A. 12

B. 12.37

C. 13

D. 15

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58.

What will be the output of the following C++ code?

#include <iostream>
#include <list>
#include <queue>
using namespace std;
int main()
{
    queue<char> q;
    q.push('a');
    q.push('b');
    q.push('c');
    cout << q.front();
    q.pop();
    cout << q.front();
    q.pop();
    cout << q.front();
    q.pop();
}

A. ab

B. abc

C. a

D. error

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59.

What will be the output of the following C++ code?

#include <list>
#include <string>
#include <iostream>
using namespace std ;
typedef list<string> LISTSTR; 
int main()
{
    LISTSTR :: iterator i;
    LISTSTR test;
    test.insert(test.end(), "one");
    test.insert(test.end(), "two");
    LISTSTR test2(test);
    LISTSTR test3(3, "three");
    LISTSTR test4(++test3.begin(),
    test3.end());
    cout << "test:";
    for (i =  test.begin(); i != test.end(); ++i)
        cout << " " << *i << endl;
    cout << "test:";
    for (i =  test2.begin(); i != test2.end(); ++i)
        cout << " " << *i << endl;
    cout << "test:";
    for (i =  test3.begin(); i != test3.end(); ++i)
        cout << " " << *i << endl;
    cout << "test:";
    for (i =  test4.begin(); i != test4.end(); ++i)
        cout << " " << *i << endl;
}

A. test

B. test one

C. test two

D. test: one
two
test: one
two
test: three
three
three
test: three
three

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60.
What is the use of header

A. Contains the standard exception files

B. Contains the standard library files

C. It is used to arise an exception in the program

D. Reduce the memory size

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51.
Pick out parameter for rehash method in unordered_set in c++?

Answer & Solution

52.
What are Container Adaptors?

Answer & Solution

53.
What are Unordered Associative Containers?

Answer & Solution

54.
How does the limits.h header file can be represented in C++?

Answer & Solution

55.
What will be the output of the following C++ code?

`#include <iostream> #include <vector> using namespace std; int main() { vector<int> v; v.assign( 10, 42 ); for (int i = 0; i < v.size(); i++) { cout << v[i] << " "; } }`

Answer & Solution

56.
Pick out the wrong header file.

Answer & Solution

57.
What will be the output of the following C++ code?

`#include <stdio.h> #include <stdlib.h> int main () { char s[] = "365.24 29.53"; char* p; double d1, d2; d1 = strtod (s, &p); d2 = strtod (p, NULL); printf ("%.2f\n", d1/d2); return 0; }`

Answer & Solution

58.
What will be the output of the following C++ code?

`#include <iostream> #include <list> #include <queue> using namespace std; int main() { queue<char> q; q.push('a'); q.push('b'); q.push('c'); cout << q.front(); q.pop(); cout << q.front(); q.pop(); cout << q.front(); q.pop(); }`

Answer & Solution

Answer & Solution

60.
What is the use of header

Answer & Solution

Read More Section(Standard Template Library (STL) in C plus plus)

Standard Template Library (STL) in C++ MCQ question and answer with solution | C++ Programimg MCQs

51. Pick out parameter for rehash method in unordered_set in c++?

Answer & Solution

52. What are Container Adaptors?

Answer & Solution

53. What are Unordered Associative Containers?

Answer & Solution

54. How does the limits.h header file can be represented in C++?

Answer & Solution

55. What will be the output of the following C++ code? #include <iostream> #include <vector> using namespace std; int main() { vector<int> v; v.assign( 10, 42 ); for (int i = 0; i < v.size(); i++) { cout << v[i] << " "; } }

Answer & Solution

56. Pick out the wrong header file.

Answer & Solution

57. What will be the output of the following C++ code? #include <stdio.h> #include <stdlib.h> int main () { char s[] = "365.24 29.53"; char* p; double d1, d2; d1 = strtod (s, &p); d2 = strtod (p, NULL); printf ("%.2f\n", d1/d2); return 0; }

Answer & Solution

58. What will be the output of the following C++ code? #include <iostream> #include <list> #include <queue> using namespace std; int main() { queue<char> q; q.push('a'); q.push('b'); q.push('c'); cout << q.front(); q.pop(); cout << q.front(); q.pop(); cout << q.front(); q.pop(); }

Answer & Solution

Answer & Solution

60. What is the use of header

Answer & Solution

Read More Section(Standard Template Library (STL) in C plus plus)

51.
Pick out parameter for rehash method in unordered_set in c++?

52.
What are Container Adaptors?

53.
What are Unordered Associative Containers?

54.
How does the limits.h header file can be represented in C++?

55.
What will be the output of the following C++ code?

`#include <iostream> #include <vector> using namespace std; int main() { vector<int> v; v.assign( 10, 42 ); for (int i = 0; i < v.size(); i++) { cout << v[i] << " "; } }`

56.
Pick out the wrong header file.

57.
What will be the output of the following C++ code?

`#include <stdio.h> #include <stdlib.h> int main () { char s[] = "365.24 29.53"; char* p; double d1, d2; d1 = strtod (s, &p); d2 = strtod (p, NULL); printf ("%.2f\n", d1/d2); return 0; }`

58.
What will be the output of the following C++ code?

`#include <iostream> #include <list> #include <queue> using namespace std; int main() { queue<char> q; q.push('a'); q.push('b'); q.push('c'); cout << q.front(); q.pop(); cout << q.front(); q.pop(); cout << q.front(); q.pop(); }`

60.
What is the use of header