Week:9 Quiz Answers(Jan 2020-Apr2020) An Introduction to Programming through C++ NPTEL 2020

  

               An Introduction To Programming Through C++

IIT Bombay.

Week 9- QUIZ ASSIGNMENT:
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Consider the following code fragment.

struct p{
  int q;
};

p r ;

1)Which of the of the following is true?
 p is a structure type
 p is a structure member
 p is a structure instance

2)Which of the of the following is true?
 q is a structure type
 q is a structure member
 q is a structure instance

3)Which of the of the following is true?
 r is a structure type
 r is a structure member
 r is a structure instance
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Consider the execution of the following piece of code.

struct cricketer{
  char name[30];
  double average;
};

cricketer C[2] = {{"Tendulkar", 57},{"Bradman",99}};

cout <<C[0].name[4];

cout <<C[1].average;

4)What will the first statement print?
Ans: u

5)What will the second statement print?
Ans: 99
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6)Which member function do I need to define if I want to allow an operation of the form p + q where p is of type P and Q of type q?
 operator+ in the definition of P
 operator+ in the definition of Q
 + in the definition of P
 + in the definition of Q

7)A public member function can only access public data members
 True
 False

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8)Consider the following code fragment

struct P{
  P(){cout <<"1";}
};

struct Q{
  P p;
  Q(){cout <<"2";}
};

int main(){
  Q q;
}

What will it print?
 1
 2
 12
 Nothing
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Consider the code fragment below

struct P{
  P *Pptr;
  int i;
};

int main(){
  P p1 = {NULL, 1};
  P p2 = {&p1, 2};
  P p3 = {&p2, 3};

  ---blank---

}

9)If ---blank--- contains   cout << p3.Pptr->i << endl;
it will print 2
 True
 False

10)If ---blank--- contains     cout << p3->Pptr->i << endl;
it will print 2
 True
 False

11)If ---blank--- contains     cout << p3.Pptr->Pptr->i << endl;
it will produce an error.
 True
 False

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