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

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

• Question 111:

  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):val(v){}

  int getV() const {return val;} bool operator < (const B and v) const { return 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<

  int main() {

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

  deque d1(t, t+10);

  sort(d1.begin(), d1.end());

  deque::iterator it = upper_bound(d1.begin(), d1.end(), B(4), greater());

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

  return 0;

  }

  Program outputs:

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

• Question 112:

  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;}

  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 : public binary_function {

  B operator() (const B and a, const B and b) const {

  return a+b; } };

  int main() {

  B 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(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 113:

  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 t1[]={3,2,4,1,5};

  int t2[]={5,6,8,2,1};

  vector v1(10);

  sort(t1, t1+5);

  sort(t2, t2+5);

  set_symmetric_difference(t1,t1+5,t2,t2+5,v1.begin());

  for_each(v1.begin(), v1.end(), Out(cout));cout<

  return 0;

  }

  Program outputs:

  A. 6 8 3 4 0 0 0 0 0 0
  B. 3 4 0 0 0 0 0 0 0 0
  C. 6 8 0 0 0 0 0 0 0 0
  D. compilation error
  E. 3 4 6 8 0 0 0 0 0 0
  E. 3 4 6 8 0 0 0 0 0 0

• Question 114:

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

  #include

  #include

  #include

  #include

  using namespace std;

  void myfunction(int i) {

  cout << " " << i;

  }

  int main() {

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

  vector v1(t, t+10);

  set s1(t, t+10);

  replace(v1.begin(), v1.end(), 1, 10);

  replace(s1.begin(), s1.end(), 1, 10);

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

  return 0;

  }

  Program outputs:

  A. 10 5 2 5 2 4 4 3 3 1
  B. 1 10 2 5 2 4 4 3 3 10
  C. compilation error
  D. 10 5 2 5 2 4 4 3 3 10
  C. compilation error

• Question 115:

  What will happen when you attempt to compile and run the code below, assuming you enter the following sequence: 1 2 3?

  #include

  using namespace std;

  int main ()

  {

  int a,b,c;

  cin>>a>>b>>c;

  cout<

  return 0;

  }

  Program will output:

  A. 123
  B. 1 2 3
  C. 321
  D. compilation error
  E. the result is unspecified
  A. 123

• Question 116:

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

  #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 };

  set s1(t, t+10);

  vector v1(s1.rbegin(), s1.rend());

  swap_ranges(s1.begin(), s1.end(), v1.begin());

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

  for_each(s1.begin(), s1.end(), myfunction);

  return 0;

  }

  Program outputs:

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

• Question 117:

  Which sentence is correct about the code below? Choose all that apply.

  #include

  #include

  #include

  using namespace std;

  class F {

  int val;

  public:

  F(int v):val(v){}

  bool operator() (int v) {

  if (v == val) return true;

  return false;

  }

  };

  int main() {

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

  vector v1(t, t + 10);

  if (find(v1.begin(), v1.end(), 6) == find(v1.begin(), v1.end(), F(6))) {

  cout<<"Found!\n";

  } else {

  cout<<"Not found!\n";

  }

  return 0;

  }

  A. it will compile successfully
  B. it will display Found!
  C. it will display Not found!
  D. it will not compile successfully
  D. it will not compile successfully

• Question 118:

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

  #include

  #include

  #include

  using namespace std;

  int main(){

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

  multiset s1(t,t+10);

  s1.insert(s1.find(7), 3);

  for(multiset::iterator i=s1.begin();i!= s1.end(); i++) {

  cout<<*i<<" ";

  }

  return 0;

  }

  A. program outputs: 0 1 2 3 3 4 5 6 7 8 9
  B. program outputs: 0 1 2 3 4 5 6 7 8 9
  C. program outputs: 0 1 2 3 4 5 6 7 3 8 9
  D. program outputs: 0 1 2 3 4 5 6 3 7 8 9
  E. runtime exception
  A. program outputs: 0 1 2 3 3 4 5 6 7 8 9

• Question 119:

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

  include

  #include

  #include

  #include

  #include

  using namespace std;

  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);

  cout<

  return 0;

  }

  A. program outputs: 6 6 6
  B. program outputs: 3 3 5
  C. program outputs: 3 6 5
  D. compilation error
  E. none of these
  D. compilation error

• Question 120:

  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):val(v){}

  int getV() const {return val;} bool operator < (const B and v) const { return val

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

  sort(d1.begin(), d1.end());

  set s1(t,t+10);

  cout<

  return 0;

  }

  Program outputs:

  A. 1 0
  B. 1 1
  C. 0 0
  D. 0 1
  E. compilation error
  B. 1 1