CBSE Class 12 Computer Science Sample Paper 2010 Solved Set C

1. (a) What is the difference between Local Variable and Global Variable? 

Also, give a suitable C++ code to illustrate both. 

(b) Write the names of the header files, which is/are essentially required to run/ execute the following C++ code: 

void main ( ) 

{ 

char C, String [ ] = "Excellence Overload"; 

for (int I=0; String [ I ] ! = '\ 0'; I ++ ) 

if (String [I] ==' ')

 cout<<end1; 

else 

{ 

C=toupper(String[I]); 

cout<<C ; 

} 

} 

(c) Rewrite the following program after removing the syntactical errors (if any). 

Underline each correction. 

#include[iostream.h] 

char Text(80) ; 

void main ( ) 

{ 

Text T= "Indian"; 

int Count=strlen(T) ; 

cout<<T<<'has'<<Count<< 'characters' <<end1; 

} 

(d) Find the output of the following program: 

#include<iostream.h> 

void ChangeArray(int Number, int ARR[ ], int Size) 

{

 for (int L =0; L<Size; L++) 

if (L<Number) 

ARR [L] +=L; 

e1se 

ARR [L] *=L; 

} 

void Show (int ARR [ ], int Size) 

{

 for (int L=0; L<Size; L++) 

(L%2!=0) ?cout<<ARR[L] <<"#": cout<<ARR[L]<<end1 ; 

} 

void main ( ) 

{ 

int Array [ ] = {30, 20, 40, 10, 60, 50}; 

ChangeArray (3, Array, 6) ; 

Show (Array, 6) ; 

}

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