C++ Institute CPP-22-02 Online Practice Questions and Exam Preparation

C++ Institute CPP-22-02 Online Questions & Answers

• Question 171:

  Which stack initialization (line numbers) are correct? Choose all that apply.

  #include

  #include

  #include

  #include

  #include

  using namespace std;

  int main()

  {

  deque mydeck;

  list mylist;

  vector myvector;

  stack first;// Line I

  stack second(mydeck);// Line II

  stack third(second);// Line III

  stack > fourth(mylist);// Line IV

  stack > fifth(myvector);// Line V

  return 0;

  }

  A. line I
  B. line II
  C. line III
  D. line IV
  E. line V
  A. line I
  B. line II
  C. line III
  D. line IV
  E. line V

• Question 172:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  using namespace std;

  templatestruct Out {

  ostream and out;

  Out(ostream and o): out(o){}

  void operator() (const T and val ) { out<

  int main() {

  int t[]={8, 10, 5, 1, 4, 6, 2, 7, 9, 3};

  deque d1(t, t+10);

  deque::iterator it = lower_bound(d1.begin(), d1.end(), 4);

  for_each(it, d1.end(), Out(cout));cout<

  return 0;

  }

  Program outputs:

  A. 8 10 5 1 4 6 2 7 9 3
  B. 4 5 6 7 8 9 10
  C. 1 2 3 4 5 6 7 8 9 10
  D. compilation error
  E. 1 2 3 4
  A. 8 10 5 1 4 6 2 7 9 3

• Question 173:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  #include

  #include

  using namespace std;

  int main(){

  int t[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };

  vector v(t, t+10);

  map m;

  for(vector::iterator i=v.begin(); i!=v.end(); i++) {

  stringstream s; s<<*i<<*i; m.insert(pair(*i,s.str()));

  }

  for(map::iterator i=m.begin();i!= m.end(); i++) {

  cout<<*i<<" ";

  }

  return 0;

  }

  A. program outputs: 3 4 2 1 6 5 7 9 8 0
  B. program outputs: 00 11 22 33 44 55 66 77 88 99
  C. program outputs: 0 1 2 3 4 5 6 7 8 9
  D. program outputs: 0 00 1 11 2 22 3 33 4 44 5 55 6 66 7 77 8 88 9 99
  E. compilation error
  E. compilation error

• Question 174:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  #include

  using namespace std;

  class B { int val;

  public:

  B(int v=0):val(v){}

  int getV() const {return val;}

  B operator +(const B andb )const { return B(val + b.val);} };

  ostream and operator <<(ostream and out, const B and v) { out<

  templatestruct Out {

  ostream and out;

  Out(ostream and o): out(o){}

  void operator() (const T and val ) { out<

  B Add(B a, B b) { return a+b; }

  int main() {

  int t[]={1,2,3,4,5,6,7,8,9,10};

  vector v1(t, t+10);

  vector v2(10);

  transform(v1.begin(), v1.end(), v2.begin(), bind2nd(ptr_fun(Add),1)); for_each(v2.rbegin(), v2.rend(), Out(cout));cout<

  return 0;

  }

  Program outputs:

  A. 1 2 3 4 5 6 7 8 9 10
  B. 2 3 4 5 6 7 8 9 10 11
  C. 10 9 8 7 6 5 4 3 2 1
  D. 11 10 9 8 7 6 5 4 3 2
  E. compilation error
  D. 11 10 9 8 7 6 5 4 3 2

• Question 175:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  using namespace std;

  template

  class A {

  T_v;

  public:

  A() {}

  A(T v): _v(v){}

  T getV() { return _v; }

  void add(T and a);

  void add(string and a);

  };

  template

  void A::add(T and a) { _v+=a; }

  void A::add(string and a) {

  _v.insert(0, a);

  }

  int main()

  {

  Aa("Hello");

  string s(" world!");

  a.add(s);

  cout << a.getV() <

  return 0;

  }

  A. program will display: Hello world!
  B. compilation error
  C. program will display: world!Hello
  D. program will run without any output
  B. compilation error

• Question 176:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  using namespace std;

  int main ()

  {

  int t[] = {1, 2 ,3 ,4 ,5};

  vectorv1(t, t+5);

  listl1;

  l1.assign(v1.end(), v1.begin());

  for(int i=0; i

  {

  cout<

  }

  cout<

  return 0;

  }

  A. program displays 5 4 3 2 1
  B. program displays 1 2 3 4 5
  C. compilation error
  D. segmentation fault runtime exception
  C. compilation error

• Question 177:

  What will happen when you attempt to compile and run the code below, assuming that you enter the following sequence: one two three?

  #include

  #include

  using namespace std;

  int main ()

  {

  string a;

  cin>>a;

  cout<

  return 0;

  }

  Program will output:

  A. one
  B. one two three
  C. runtime exception
  D. compilation error
  E. the result is unspecified
  A. one

• Question 178:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  #include

  #include

  using namespace std;

  void myfunction(int i) {

  cout << " " << i;

  }

  int main() {

  int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };

  vector v1(t, t + 10);

  deque d1(t, t + 10);

  set s1(t, t + 10);

  for_each(v1.begin(), v1.end(), myfunction); // Line I

  for_each(d1.begin(), d1.end(), myfunction); // Line II

  for_each(s1.begin(), s1.end(), myfunction); // Line III return 0;

  }

  A. program outputs: 10 5 9 6 2 4 7 8 3 1 10 5 9 6 2 4 7 8 3 1 1 2 3 4 5 6 7 8 9 10
  B. program outputs: 10 5 9 6 2 4 7 8 3 1 10 5 9 6 2 4 7 8 3 1 10 5 9 6 2 4 7 8 3 1
  C. program outputs: 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10
  D. compilation error in line I
  E. compilation error in line III
  A. program outputs: 10 5 9 6 2 4 7 8 3 1 10 5 9 6 2 4 7 8 3 1 1 2 3 4 5 6 7 8 9 10

• Question 179:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  using namespace std;

  class B { int val;

  public:

  B(int v=0):val(v){}

  int getV() const {return val;}

  operator int () const { return val;} };

  templatestruct Out {

  ostream and out;

  Out(ostream and o): out(o){}

  void operator() (const T and val ) { out<

  struct Add {

  B operator()(B and a, B and b) { return a+b; }};

  int main() {

  int t[]={1,2,3,4,5,6,7,8,9,10};

  vector v1(t, t+10);

  vector v2(10);

  transform(v1.begin(), v1.end(), v2.begin(), bind1st(1,Add()));

  for_each(v2.rbegin(), v2.rend(), Out(cout));cout<

  return 0;

  }

  Program outputs:

  A. 1 2 3 4 5 6 7 8 9 10
  B. 2 3 4 5 6 7 8 9 10 11
  C. 10 9 8 7 6 5 4 3 2 1
  D. 11 10 9 8 7 6 5 4 3 2
  E. compilation error
  E. compilation error

• Question 180:

  What happens when you attempt to compile and run the following code?

  #include

  #include

  #include

  using namespace std;

  void myfunction(int i) {

  cout << " " << i;

  }

  int main() {

  int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };

  vector v1(t, t + 10);

  copy_backward(t, t+10, v1.rend());

  for_each(v1.begin(), v1.end(), myfunction);

  return 0;

  }

  Program outputs:

  A. 10 5 9 6 2 4 7 8 3 1
  B. 1 3 8 7 4 2 6 9 5 10 10 5 9 6 2 4 7 8 3 1
  C. 1 3 8 7 4 2 6 9 5 10
  D. runtime exception/segmentation fault
  E. compilation error
  C. 1 3 8 7 4 2 6 9 5 10