CBSE Class 12 Computer Science Sample Paper 2015 Set B

1.1. Name the Header file(s) that shall be needed for successful compilation of the following C++ code

void main()

{

int a[10];

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

{

cin>>a[i];

if(a[i]%2==0)

a[i]=pow(a[i],3);

else

a[i]=sqrt(a[i]);

if(a[i]>32767)

exit(0);

}

getch();

}

2. In the following C++ program, what will be the maximum and minimum value of r generated with the help of random function?

#include<iostream.h>

#include<stdlib.h>

void main()

{

int r;

randomize();

r=random(20)+random(2);

cout<<r;

}

2.1. Rewrite the following program after removing syntactical error(s) if any. Underline each correction.

#include<iostream.h>

void main( )

{

struct movie

{ char movie_name[20];

char movie_type;

int tickets=100;

} MOVIE;

gets(movie_name);

gets(movie_type);

}

2. Find the output of the following program

#include<iostream.h>

void Modify(int &a, int b=10)

{ if(b%10==0)

a+=5;

for(int i=5;i<=a;i++)

cout<<b++<<.:.;

cout<<endl;

}

void Disp(int x)

{

if(x%3==0)

Modify(x);

else

Modify(x,3);

}

void main()

{ Disp(3);

Disp(4);

Modify(2,20);

}

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