CBSE Class 12 Computer Science Question Paper Solved 2019

CBSE Class 12 Computer Science Question Paper Solved 2019. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

SECTION A

[Only for candidates, who opted for C++]

1. (a) Write the names of any four fundamental data types of C++.

(b) Write the names of the correct header files, which must be included in the following C++ code to compile the code successfully :

void main()

{

char L[]="CS 2018";

int N=strlen(L);

cout<<L[N-1];

}

(c) Rewrite the following C++ program after removing any/all syntactical error(s). Underline each correction done in the code :

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

#define Area(L,B) = L*B

structure Recta

{

int Length,Breadth;

};

void main()

{

Recta R = [10,15];

cout<<Area(Length.R,Breadth.R);

}

(d) Find and write the output of the following C++ program code :

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

void Alter(char *S1, char *S2)

{

char *T;

T=S1;

S1=S2;

S2=T;

cout<<S1<<"&"<<S2<<end1;

}

void main()

{

char X[]="First", Y[]="Second";

Alter(X,Y);

cout<<X<<"*"<<Y<<end1;

(e) Find and write the output of the following C++ program code :

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

void Convert(float &X, int Y=2)

{

X=X/Y;

Y=X+Y;

cout<<X<<"*"<<Y<<endl;

}

void main()

{

float M=15, N=5;

Convert(M,N);

Convert(N);

Convert(M); 

} 

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