CBSE Class 12 Computer Science 2017 Sample Paper

Explain conditional operator with suitable example?

Which C++ header file(s) are essentially required to be included to

run/execute the following C++ code :

void main()

{

char *word1="Hello",*word2="Friends";

strcat(word1,word2);

cout<<word1;

}

Rewrite the following program after removing the syntactical errors

(if any). Underline each correction.

# include<conio.h>

# include<iostream.h>

# include<string.h>

# include<stdio.h>

class product

{

int product_code,qty,price;

char name[20];

public:

product(){

product_code=0;qty=0;price=0;

name=NULL;

}

void entry()

{

cout<<"\n Enter code,qty,price";

cin>>product_code>>qty>>price;

gets(name);

}

void tot_price() {return qty*price;}

};

void main()

{

p product;

p.entry();

cout<<tot_price();

}

Write the output of the following C++ program code:

Note: Assume all required header files are already being included in the program.

void change (int *s)

{

for (int i = 0; i < 4; i++)

{

if (*s<40)

{

if (*s % 2 == 0)

*s = *s + 10;

else

*s = *s + 11;

}

else

{

if (*s%2 == 0)

*s=*s-10;

else

*s = *s ‒ 11;

}

Cout << *s <<" ";

s++;

}

}

void main()

{

2

int score [] = {25,60,35,53};

change (score);

}

Questions of CBSE Sample Paper for Class 12 Computer Science 2017

Marking Scheme of CBSE Sample Paper for Class 12 Computer Science 2017

Complete CBSE Sample Paper for Class 12 Computer Science 2017