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# Chapter 7- Pointers Interview Questions Answers

### Related Subjects

Question 1 :
.Write the definition of a function FixPay (float Pay[ ], int N) in C+ + , which should modify each element of the array Pay having N elements, as per the following rules :
 Existing Salary Value Required Modification in Value If less than 1,00,000 Add 25% in the existing value If >=1,00,000 and <20,000 Add 20% in the existing value If >=2,00,000 Add 15% in the existing value

Void FixPay(float Pay[],int N)
{
for(int i=0;i
{
if(Pay[i]<100000)
Pay[i]+= Pay[i]*0.25;
else if(Pay[i]<200000)
Pay[i]+= Pay[i]*0.20;
else
Pay[i]+= Pay[i]*0.15 ;
}
}

Question 2 :
Write the definition of a member function INSERT() for a class QUEUE in C+ +, to remove a product from a dynamically allocated Queue of items considering the following code is already written as a part of the program-

Struct ITEM
{
int INO; char INAME[20];
};
class QUEUE
{
ITEM *R,*F;
Public:
QUEUE(){R=NULL; F=NULL;}
void INSERT();
void DELETE();
~QUEUE();
};

Void QUEUE::INSER()
{
ITEM*newitem = new ITEM;
Cout<<"enter item number";
cin>>newitem → INO;
Cout<<"Enter item name";
gets(newitem → INAME);
if (R==NULL)
R=F=newitem;
else
{
R = newitem;
}

Question 3 :
Write the output from the following C+ + program code :-

#include
#include
void strcon(char s[])
{
for(int i=0,l=0;s[i]!='\0';i++,l++);
fortint j=0;j
{
if(isupper(s[j]))
s[j]=tolower(s[j])+2;
else if( islower(s[j]))
s[j]=toupper(s[j])-2;
else
s[j] ='@';
}
}
void main()
{
char *c="Romeo Joliet";
strcon(c);
cout<<"Text="<
c=c+3;
cout<<"New Text="<
c=c+5-2 ;
cout<<"last Text= "<
}

Text = tMKCM@lMJGCR
New Text = KCM@1MJGCR
Last Text = 1MJGCR

Question 4 :
Obtain the output of the following C+ + program as expected to appear on the screen after its execution.
Important Note : All the desired header files are already included in the code, which are required to run the code.

void main()
{
char *Text="AJANTA"; int *P, Num[]={l,5,7,9}
P=Num;
cout <<*p<< Text <
Text++;
P++;
cout<<*P<
}

1AJANTA
5JANTA

Question 5 :
.Obtain the output from the following C+ + program as expected to appear on the screen after its execution.
Important Note :
• Adi the desired header files are already included in the code, which are required to run the code.

void main()
{
char *String="SARGAM";
int *Ptr, a[]={1,5,7,9};
ptr=a;
cout<<*ptr<
String++;
ptr+=3;
cout<<*ptr<
}

1 SARGAM
9ARGAM

Question 6 :
.Give the output of the following program segment: (Assuming all desired header file(s) are already included)

void main()
{
float *Ptr, Points[] = {20,50,30,40,10};
Ptr = points;
cout<<*Ptr<
Ptr+=2;
Points[2]+=2.5;
cout<<*Ptr<
Ptr++;
(*Ptr)+=2.5;
cout<
}

20.00 32.5
42.50

Question 7 :
Find the output of the following code :-
Important Note :
All the header files are already included in the code, which are required to run the code.

void main()
{
char *String="SHAKTI";
int*Point,Value[]={10,15,70,19};
Point=Value;
cout<<*Point<
String++;
Point++;
cout<<*Point<
}

10SHAKTI
15HAKTI

Question 8 :
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+ll;
}
else
{
if(*s%2==0)
*S=*S-10;
else
*s=*s-ll;
}
cout<<*s<<" ";
s++;
}
}
void main()
{
int score[]={25,60,35,53 };
change(score);
}

36 50 46 42

Question 9 :
Find the output of the following program :-

#include
void in(int x,int y,int &z)
{
x+=y;
y--;
z*=(x-y);
}
void out(int z,int y,int &x)
{
x*=y;
y++;
z/=(x+y);
}
void main()
{
int a=20, b=30, c=10;
out(a,c,b);
cout<
in(b,c, a) ;
cout<
out(a,b,c);
cout<
}

20#300#10#
620@300@10@
620\$300\$3000\$

Question 10 :
Find the output of the following code:-

#include
void main()
{
int *Striker;
int Track[]={10,25,30,55};
Striker=Track;
Track[1]+=30;
cout<<"Striker"<<*Striker<
*Striker=-10;
Striker++;
cout<<"Next@"<<*Striker<
Striker+=2;
cout<<"Last@"<<*Striker<
cout<<"Rest To"<<*Track[0]<
}

Striker 10
Next@55
Last@55
Rest To 0

krishan