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

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

• Question 71:

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

  #include

  #include

  #include

  using namespace std;

  struct Compare {

  bool operator ()(int a) {

  if (a >5) return true;

  return false;

  }

  };

  int main () {

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

  vector v (t,t+15);

  int number = count(v.begin(), v.end(), Compare());

  cout<< number<

  return 0;

  }

  Program outputs:

  A. 4
  B. 3
  C. 2
  E. compilation error
  E. compilation error

• Question 72:

  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);

  dequed1;

  d1.assign(v1.end(), v1.begin());

  for(int i=0; i

  {

  cout<

  }

  cout<

  return 0;

  }

  A. program outputs 5 4 3 2 1
  B. program outputs 1 2 3 4 5
  C. compilation error in line 8
  D. compilation error in line 10
  E. segmentation fault runtime exception
  E. segmentation fault runtime exception

• Question 73:

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

  #include

  #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 Add(int a, int 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 74:

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

  #include

  #include

  using namespace std;

  int main ()

  {

  bool a,b;

  cin>>boolalpha>>a>>b;

  cout<

  return 0;

  }

  Program will output:

  A. truefalse
  B. true0;
  C. 1false
  D. 10
  E. none of these
  D. 10

• Question 75:

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

  #include

  #include

  using namespace std;

  void myfunction(pair i) {

  cout << " " << i.first;

  }

  int main() {

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

  map m;

  for(int i=0; i < 10; i++) {

  m[i]=t[i];

  }

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

  return 0;

  }

  Program outputs:

  A. 10 5 9 6 2 4 7 8 3 1
  B. 0 1 2 3 4 5 6 7 8 9
  C. 9 8 7 6 5 4 3 2 1 0
  D. 1 3 8 7 4 2 6 9 5 10
  E. compilation error
  B. 0 1 2 3 4 5 6 7 8 9

• Question 76:

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

  #include

  #include

  using namespace std;

  class A

  {

  int a,b;

  public:

  A(const A and c) { a = c.a; }

  A():a(0),b(0){}

  void setA(int a) {this?>a = a;} void setB(int b) {this?>b = b;}

  int getA() {return a;} int getB() {return b;}

  };

  int main ()

  {

  vectorv;

  A a;

  a.setA(10); a.setB(11);

  v.push_back(a);

  cout<

  return 0;

  }

  A. program outputs 10 11
  B. the result is unpredictable
  C. program outputs 10 0
  D. program outputs 11 0
  E. compilation error
  B. the result is unpredictable

• Question 77:

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

  #include

  using namespace std;

  class A {

  int a;

  public:

  A(int a) : a(a) {}

  int getA() const { return a; } void setA(int a) { this?>a = a; }

  };

  struct Even {

  bool operator ()(const A and a, const A andb) {

  return (a.getA() % 2)==b.getA() % 2;

  }

  };

  int main () {

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

  deque d (t,t+15);

  deque::iterator it = search_n(d.begin(), d.end(), 3, 2, Even());

  cout<< it?d.begin()<

  return 0;

  }

  Program outputs:

  A. compilation error
  B. 12
  C. 3
  D. 1
  E. 15
  B. 12

• Question 78:

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

  #include

  using namespace std;

  template

  void f(A anda)

  {

  cout<<1<

  }

  void f(int anda)

  {

  cout<<2<

  }

  int main()

  {

  int a = 1;

  f(a);

  return 0;

  }

  A. program displays: 1
  B. program displays: 2
  C. compilation error
  D. runtime exception
  B. program displays: 2

• Question 79:

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

  #include

  #include

  using namespace std;

  int main ()

  {

  bool a,b;

  cin>>a>>b;

  cout<

  return 0;

  }

  Program will output:

  A. truetrue
  B. falsefalse
  C. 11
  D. 00
  E. none of these
  E. none of these

• Question 80:

  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, 0, 1, 2, 3, 4, 0 };

  vector v(t, t+10);

  multimap m;

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

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

  }

  for(multimap::iterator i=m.begin();i!= m.end(); i++) { cout<<*i<<" ";

  }

  return 0;

  }

  A. program outputs: 3 4 2 1 0 1 2 3 4 0
  B. program outputs: 00 11 22 33 44
  C. program outputs: 0 0 1 1 2 2 3 3 4 4
  D. program outputs: 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4
  E. compilation error
  E. compilation error