XII C COMPUTER SCIENCE (JUNE 2014 MONTHLY RE TEST)

KENDRIYA  VIDYALAYA NO. 1  ,  NAUSENABAUGH , VSKP-05

XII C   COMPUTER SCIENCE  (JUNE 2014 MONTHLY RE TEST)

Time Allowed  : 90 Minutes                                  Max Marks : 40

Note : All questions are compulsory.

1.Write a function in C++ to return the element which is present maximum number of times in an array . The function prototype is given below.                                                                                                  4M
  int MAX(int arr[], int size)
     e.g : If the array is 2 4 2 4 2 4 2 4 2 4 2 2 4
     then the function will return a value 2
2. Rewrite the following program after removing the syntax error(s), if any. Underline  each correction4M                                          
        #include<iostream.h>
         int main()
               {
                  struct student
                                {
                                    int. rno, mark;
                                       }stu;
                    student stuA= (1001,49);
                  student stuB= stuA;
                     if (stuA!= stuB)
                             stuA.mark= 55;
                                         else
 stuB.mark= 25;
                    cout<<stuA.mark<<stub.mark;
                    }
3. Name the header files that shall be needed for the following code:       2M            
void  main()
    {
     int N, G;
       randomize();
     cin>>N;
          G=random(N-5)+5;
       cout<<G<<endl;    getch();
      }

    4. Answer the questions (i) and (ii) after going through the following program: 4M
class Match{
int Time;
public:
Match() //Function 1
{
Time=0;
cout<<”Match commences”<<end1;
}
void Details() //Function 2
{
   cout<<”Inter Section Basketball Match”<<end1;
   }

Match(int Duration) //Function 3
{
Time=Duration;
cout<<”Another Match begins now”<<end1;
   }
Match(Match &M) //Function 4
{
           Time=M.Duration;
            cout<<”Like Previous Match ”<<end1;
       }
};
Which category of constructor - Function 4 belongs to and what is the purpose of using it?
Write statements that would call the member Functions 1 and 3

     5. Define a class FLIGHT in C++ with following description:  4M
Private Members
A data member Flight number of type integer
A data member Destination of type string
A data member Distance of type float
A data member Fuel of type float
A member function CALFUEL() to calculate the value of Fuel as per the following criteria
Distance Fuel
<=1000 500
more than 1000  and <=2000                                         1100
more than 2000             2200

Public Members
A function FEEDINFO() to allow user to enter values for Flight Number, Destination, Distance & call function CALFUEL() to calculate the quantity of Fuel
A function SHOWINFO() to allow user to view the content of all the data members

6. An array A[40][10] is stored in the memory along the column with each element occupying 4 bytes. Find out the Base address and address of the element A[3][6] if the element A[30][10] is stored at the address 9000. 4M
                                                                                                                                                                 
7. Given two dimensional array A[10][20], base address of A being 100 and width of each element is 4 bytes, find the location of A[8][15] when the array is stored as     (a) column wise  (b) Row wise          4M

8.An array P[20][30] is stored in the memory along the column with each of the element occupying 4 bytes, find out the memory location for the element P[5][15], if an element P[2][20] is stored at the memory location 5000   4M      
                                                                                                                   
9 . Answer the questions (i) to (iv) based on the following code : 4M
class Goods
{ int id;
protected :
char name[20];
long qty;
void Incr(int n);
public :
Goods();
~Goods();
void get(); };
class Food_products : public Goods
{
char exp_dt[10];
protected :
int id;
int qty;
public :
void getd();
void showd(); };
class Cosmetics : private Goods
{ int qty;
char exp_date[10];
protected :
int id;
public :
~Cosmetics();Cosmetics();void show();};

(i) How many bytes will be required by an object of class  Food_products.
(ii) Name the member functions accessible through the object of class Food_products.
(iii) From the following, Identify the member function(s) that cannot be called directly from the object of class Cosmetics
show(), getd(), get()
(iv) If the class cosmetics inherits the properties of food_products class also, then name the type of inheritance.

10.Write a function in C++ which accepts an integer array and its size as arguments and change all the even number with twice and odd with thrice.
Example: if an array of five elements initially contains the element as
2,4,1,5,7
then the function should rearrange the array as
4,8,3,15,21

 11. Write a function in C++ which accepts an integer array and its size as arguments/ parameters and then assigns the elements into a two dimensional array of integers in the following format:

If the array is 1, 2, 3, 4, 5, 6
The resultant 2 D array is given below

If the array is 1, 2, 3
The resultant 2 D array is given below