//menu driven program of circular queue
#include<iostream.h>
#include<conio.h>
#include<process.h>
#define size 5
int front=-1,rear=-1;
void insert_CQ(int QUEUE[],int ELEMENT,int &front,int &rear)
{ if(rear==size-1)
rear=0;
  else
rear++;
  if(rear==front)
  { cout<<"\n Queue overflow";
exit(1);
  }
  QUEUE[rear]=ELEMENT;
  if(front==-1)
front++;
}
void delete_CQ(int QUEUE[],int &front,int &rear)
{ int value;
  if(front==-1)
  { cout<<"\n Queue underflow";
exit(1);
  }
  value=QUEUE[front];
  cout<<"\n Element to be deleted is :"<<value;
  if(front==rear)
front=rear=-1;
  else
  { if(front==size-1)
front=0;
else
front++;
  }
}
void display_CQ(int QUEUE[],int &front,int &rear)
{ if(front>=0)
  { if(front<=rear)
{ for(int p=front;p<rear;p++)
  cout<<QUEUE[p]<<"<--";
  cout<<QUEUE[rear];
}
else
{ for(int p=front;p<=size-1;p++)
  cout<<QUEUE[p]<<"<--";
for(p=0;p<rear;p++)
  cout<<QUEUE[p]<<"<--";
cout<<QUEUE[rear];
}
  }
}
void main()
{ clrscr();
  int ch,element,queue[20];
  l:
  cout<<"\n Press 1 for PUSHING"
<<"\n Press 2 for POPING"
<<"\n Press 3 for TRAVERSAL"
<<"\n Press 4 to EXIT\n";
  cout<<"\n Enter your choice:";
  cin>>ch;
  if(ch==4)
  { cout<<"\n THANK YOU";
exit(0);
  }
  else if(ch==1)
  { cout<<"\n Enter the element to be inserted:";
cin>>element;
insert_CQ(queue,element,front,rear);
goto l;
  }
  else if(ch==2)
  { delete_CQ(queue,front,rear);
goto l;
  }
  else
  { display_CQ(queue,front,rear);
goto l;
  }
  getch();
}

//menu driven program by linked list implementation of queue
#include<iostream.h>
#include<conio.h>
#include<process.h>
struct node
{ int info;
  node *next;
}*front,*rear,*np,*ptr,*temp;
void insert_Q(int INF)
{ ptr=new node;
  ptr->info=INF;
  ptr->next=NULL;
  if(ptr==NULL)
exit(1);
  if(front==NULL)
front=rear=ptr;
  else
  {  rear->next=ptr;
  rear=ptr;
  }
}
void delete_Q()
{  if(front==NULL)
  cout<<"\n Underflow";
else
{ temp=front;
  front=front->next;
}
delete temp;
}
void display(node *np)
{  clrscr();
   cout<<"\t\t";
while(np!=NULL)
{ cout<<np->info<<"-->";
  np=np->next;
}
cout<<"NULL";
}
void main()
{ clrscr();
  front=rear=NULL;
  int p,inf;
  l:
  cout<<"\n Press 1 for PUSHING"
<<"\n Press 2 for POPING"
<<"\n Press 3 for TRAVERSAL"
<<"\n Press 4 to EXIT\n";
  cout<<"\n Enter your choice:";
  cin>>p;
  if(p==4)
  { cout<<"\n THANK YOU";
exit(0);
  }
  else if(p==1)
  { cout<<"\n Enter the element to be inserted:";
cin>>inf;
insert_Q(inf);
goto l;
  }
  else if(p==2)
  { delete_Q();
goto l;
  }
  else
  { display(front);
goto l;
  }
  getch();
}

//menu driven program using queue
#include<iostream.h>
#include<conio.h>
#include<process.h>
#define size 5
int front=-1,rear=-1;
void insert_Q(int QUEUE[],int ELEMENT,int &front,int &rear)
{  if(rear==size-1)
{ cout<<"\n Queue overflow";
  exit(1);
}
rear++;
QUEUE[rear]=ELEMENT;
if(front==-1)
front=0;
}
void delete_Q(int QUEUE[],int &front,int &rear)
{  int value;
value=QUEUE[front];
cout<<"\n Deleted element is:"<<value;
if(front==-1)
{ cout<<"\n Queue underflow";
  exit(1);
}
front++;
if(front==rear)
front=rear=-1;
}
void display(int QUEUE[],int &front,int &rear)
{  clrscr();
for( int p=front;p<rear;p++)
cout<<"\t\t"<<QUEUE[p]<<"<--\t";
cout<<QUEUE[rear];
}
void main()
{ clrscr();
  int ch,element,queue[20];
  l:
  cout<<"\n Press 1 for PUSHING"
<<"\n Press 2 for POPING"
<<"\n Press 3 for TRAVERSAL"
<<"\n Press 4 to EXIT";
  cin>>ch;
  if(ch==4)
  { cout<<"\n THANK YOU";
exit(0);
  }
  else if(ch==1)
  { cout<<"\n Enter the element to be inserted:";
cin>>element;
insert_Q(queue,element,front,rear);
goto l;
  }
  else if(ch==2)
  { delete_Q(queue,front,rear);
goto l;
  }
  else
  { display(queue,front,rear);
goto l;
  }
  getch();
}

//program to create linked list implementation of stack
#include<iostream.h>
#include<conio.h>
#include<process.h>
struct node
{ int info;
  node * next;
}*top,*ptr,*temp;
void PUSH(int INF)
{ ptr=new node;
  ptr->info=INF;
  ptr->next=NULL;
  if(ptr==NULL)
  { cout<<"\n Node is not created";
exit(0);
  }
  if(top==NULL)
top=ptr;
  else
  { ptr->next=top;
top=ptr;
  }
}
void POP()
{ if(top==NULL)
  { cout<<"\n Stack underflow";
exit(0);
  }
  else
  { temp=top;
top=top->next;
delete temp;
  }
}
void DISPLAY(node *np)
{ if(np==NULL)
cout<<"\n Stack empty";
  else
  { while(np!=NULL)
{ cout<<np->info<<"-->>";
np=np->next;
}
cout<<"NULL";
  }
}
void main()
{ clrscr();
  int p,inf;
  top=NULL;
  l:
  cout<<"\n Press 1 for insertion"
<<"\n Press 2 for deletion"
<<"\n Press 3 for exit";
  cin>>p;
  if(p==3)
  { cout<<"\n thank you";
exit(0);
  }
  else if(p==1)
  { cout<<"\n Enter element:";
cin>>inf;
PUSH(inf);
DISPLAY(top);
goto l;
  }
  else
  { POP();
DISPLAY(top);
goto l;
  }
  getch();
}

//program to perform push, pop, and traversal in stack
#include<iostream.h>
#include<conio.h>
#include<process.h>
const int size=20;
void PUSH(int STACK[],int ELEMENT ,int &TOP)
{ if(TOP==size-1)
  { cout<<"\n Overflow";
  }
  else
  { TOP++;
STACK[TOP]=ELEMENT;
  }
}
void POP(int STACK[],int& TOP)
{ if(TOP==-1)
  { cout<<"\n Underflow";
  }
  else
  { cout<<"\n Element to be deleted"<<STACK[TOP];
TOP--;
  }
}
void DISPLAY(int STACK[],int TOP)
{ clrscr();
  cout<<STACK[TOP]<<"<--TOP";
  for(int P=TOP-1;P>=0;P--)
  cout<<"\n"<<STACK[P];
}
void main()
{ clrscr();
  int ch, element, top=-1,stack[20];
  l:
  //clrscr();
  cout<<"\n Press 1 to PUSH"
<<"\n Press 2 to POP"
<<"\n Press 3 to TRAVERSAL"
<<"\n Press 4 to EXIT\n";
  cout<<"\nEnter your choice:";
  cin>>ch;
  if(ch==4)
  { exit(0);}
  else if(ch==1)
  { cout<<"\n Enter the element to be inserted:";
cin>>element;
PUSH(stack,element,top);
goto l;
  }
  else if(ch==2)
  { POP(stack,top);
goto l;
  }
  else
  { DISPLAY(stack,top);
goto l;
  }
  getch();
}

//program to sort out two arrays using merge sort
#include<iostream.h>
#include<conio.h>
void merge_sort(int A[],int B[],int M,int N,int C[])
{ int i=0,j=0,k=0,p;
  while(i<M&&j<N)
  { if(A[i]<B[j])
{ C[k]=A[i];
i++;
}
else
{ C[k]=B[j];
j++;
}
k++;
  }
  if(i==M)
  { for(p=j;p<N;p++)
{ C[k]=B[p];
k++;
}
  }
  else
  { for(p=i;p<M;p++)
{ C[k]=A[p];
k++;
}
  }
}

void main()
{ clrscr();
  int a[20],m,b[20],n,i,c[20];
  cout<<"\n Enter the number of elements of a:";
  cin>>m;
  cout<<"\n Enter the elements of array a";
  for(i=0;i<m;i++)
  { cout<<"\n Enter a["<<i<<"]:";
cin>>a[i];
  }
  cout<<"\n Array is:";
  for(i=0;i<m;i++)
  cout<<a[i]<<"\t";
  cout<<"\n Enter the number of elements of b:";
  cin>>n;
  cout<<"\n Enter the elements of array b";
  for(i=0;i<n;i++)
  { cout<<"\n Enter b["<<i<<"]:";
cin>>b[i];
  }
  cout<<"\n Array is:";
  for(i=0;i<n;i++)
  cout<<b[i]<<"\t";
  merge_sort (a,b,m,n,c);
  cout<<"\n Sorted and concatinated array is:";
  for(i=0;i<n+m;i++)
  cout<<c[i]<<"\t";
  getch();
}

//program to sort out an array using bubble sort
#include<iostream.h>
#include<conio.h>
void bubble_sort(int A[20],int N)
{ int i,j,p,temp;
  for(i=0;i<N;i++)
  { for(j=0;j<N-i;j++)
{ if(A[j]>A[j+1])
{ temp=A[j];
  A[j]=A[j+1];
  A[j+1]=temp;
}
}
cout<<"\n Array after iteration "<<i+1<<" is: ";
for(p=0;p<N;p++)
cout<<A[p]<<"\t";
  }
}
void main()
{ clrscr();
  int a[20],n,i;
  cout<<"\n Enter the number of elements:";
  cin>>n;
  cout<<"\n Enter the elements of array";
  for(i=0;i<n;i++)
  { cout<<"\n Enter a["<<i<<"]:";
cin>>a[i];
  }
  cout<<"\n Array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  bubble_sort(a,n);
  cout<<"\n Sorted array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  getch();
}

//program to sort out an array using selection sort
#include<iostream.h>
#include<conio.h>
void selection_sort(int A[20],int N)
{ int i,j,p,temp,small,pos;
  for(i=0;i<N;i++)
  { small=A[i];
pos=i;
for(j=i+1;j<N;j++)
{ if(small>A[j])
{ small=A[j];
  pos=j;
}
}
temp=A[i];
A[i]=A[pos];
A[pos]=temp;
cout<<"\n Array after iteration "<<(i+1)<<" is: ";
for(p=0;p<N;p++)
cout<<A[p]<<"\t";
  }
}
void main()
{ clrscr();
  int a[20],n,i;
  cout<<"\n Enter the number of elements:";
  cin>>n;
  cout<<"\n Enter the elements of array";
  for(i=0;i<n;i++)
  { cout<<"\n Enter a["<<i<<"]:";
cin>>a[i];
  }
  cout<<"\n Array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  selection_sort(a,n);
  cout<<"\n Sorted array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  getch();
}

//program to sort an array using insertion sort
#include<iostream.h>
#include<conio.h>
void insertion_sort(int A[20],int N);
void main()
{ clrscr();
  int a[20],n,i;
  cout<<"\n Enter the number of elements:";
  cin>>n;
  cout<<"\n Enter the elements of array:";
  for(i=0;i<n;i++)
  { cout<<"\n Enter a["<<i<<"]:";
cin>>a[i];
  }
  cout<<"\n Array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  insertion_sort(a,n);
  cout<<"\n Sorted array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  getch();
}
void insertion_sort(int A[20],int N)
{ int i,j,temp,p;
  for(i=1;i<N;i++)
  { temp=A[i];
j=i-1;
while(A[j]>temp&&j>=0)
{ A[j+1]=A[j];
j--;
}
A[j+1]=temp;
cout<<"\n Array after itteration "<<i<<" is:";
for(p=0;p<N;p++)
cout<<A[p]<<"\t";
  }
}

//menu driven program to insert or delete a specific element in a sorted array
#include<iostream.h>
#include<conio.h>
#include<process.h>
void insert(int A[20],int& N,int ELEMENT)
{ int pos;
if(N==20)
  { cout<<"\n Overflow";

  }
  if(A[0]>ELEMENT)
  pos=0;
  if(A[N-1]<ELEMENT)
  pos=N;
  for(int i=0;i<N;i++)
  { if(A[i]<ELEMENT&&A[i+1]>ELEMENT)
pos=i+1;
  }
  for(i=N-1;i>=pos;i--)
  A[i+1]=A[i];
  A[pos]=ELEMENT;
  N++;
  cout<<"\n Array after insertion is:";
  for(i=0;i<N;i++)
  cout<<A[i]<<"\t";
}
void delet(int A[20],int N,int ELEMENT)
{ int pos;
if(N==0)
  { cout<<"\n Underflow";

  }
  else
 {  for(int i=0;i<N;i++)
{ if(A[i]==ELEMENT)
pos=i;
}
for(i=pos;i<N;i++)
A[i]=A[i+1];
N--;
cout<<"\n Array after deletion is:";
for(i=0;i<N;i++)
cout<<A[i]<<"\t";
 }
}
void main()
{ clrscr();
  int a[20],n=0,element,p;
  l:

  cout<<"\n Press 1 for INSRETION"
<<"\n Press 2 for DELETION"
<<"\n Press 3 for EXIT\n";

  cout<<"\n Enter your choice:";
  cin>>p;
  if(p==3)
  { clrscr();
cout<<"\n\t\t THANK YOU";
getch();
exit(0);
  }
  else if(p==1)
  { clrscr();

cout<<"\n Enter the element to be inserted:";
cin>>element;
insert(a,n,element);
goto l;

  }
  else
  { clrscr();

cout<<"\n Enter the element to be deleted:";
cin>>element;
delet(a,n,element);
goto l;

  }
  getch();
}

//program to search an integer in an array of N integer using binary search method
#include<iostream.h>
#include<conio.h>
int Binary_Search(int a[],int n,int element);
void main()
{ clrscr();
  int A[20],N,ELEMENT,i,INDEX;
  cout<<"\n Enter the number of elements:";//Ascending order
  cin>>N;
  cout<<"\n Enter the elements of array:";
  for(i=0;i<N;i++)
  { cout<<"\n Enter A["<<i<<"]:";
cin>>A[i];
  }
  cout<<"\n Enter the element to be searched:";
  cin>>ELEMENT;
  INDEX=Binary_Search(A,N,ELEMENT);
  if(INDEX==-1)
  cout<<"\n Unsuccessful search";
  else
  cout<<"\n Element is present at "<<INDEX<<" and  is at position "<<(INDEX+1);
  getch();
}

int Binary_Search(int a[],int n,int element)
{ int beg=0,last=n-1,mid;
  while(beg<=last)
  { mid=(beg+last)/2;
if(a[mid]==element)
return mid;
else
if(a[mid]<element)
beg=mid+1;
else
last=mid-1;
  }
  return(-1);
}

//progarm to search an integer in an array of N integers using linear search
#include<iostream.h>
#include<conio.h>
int linear(int A[],int N,int ELEMENT)
{ for(int i=0;i<N;i++)
  { if(A[i]==ELEMENT)
return i;
  }
  return(-1);
}
void main()
{ clrscr();
  int a[20],n,element,i,p;
  cout<<"\n Enter the number of elements";
  cin>>n;
  cout<<"\n Enter the elements of array";
  for(i=0;i<n;i++)
  { cout<<"\n Enter a["<<i<<"]:";
cin>>a[i];
  }
  cout<<"\n Array is:";
  for(i=0;i<n;i++)
  cout<<a[i]<<"\t";
  cout<<"\n Enter the element to be searched:";
  cin>>element;
  p=linear(a,n,element);
  if(p==-1)
  cout<<"\n Unsucessful search";
  else
  cout<<"\n Element "<<element<<" is present at index "<<p<<" and at position "<<(p+1);
  getch();
}

//program to store the details of mobile
#include<fstream.h>
#include<conio.h>
#include<process.h>
#include<stdio.h>
class MOBILE
{ private:
  int ModelNo;
  char Brand[20];
  int Price;
 public:
 int get_modelno()
  { return(ModelNo);
  }
  void enter();
  void show();
};
void MOBILE::enter()
{ cout<<"\n Enter the details";
  cout<<"\n\n Enter the model number:";
  cin>>ModelNo;
  cout<<"\n Enter the brand:";
  gets(Brand);
  cout<<"\n Enter the price:";
  cin>>Price;
}
void MOBILE::show()
{ cout<<"\n Model No.: "<<ModelNo;
  cout<<"\n Brand: "<<Brand;
  cout<<"\n Price: "<<Price;
}
void main()
{ clrscr();
  MOBILE mob;
  char p;
  ofstream ofile;
  ofile.open("MOBILE.DAT",ios::app|ios::binary);
  if(!ofile)
  { cout<<"\n File can not open";
exit(1);
  }
  do
  {
   mob.enter();
   ofile.write((char*)&mob,sizeof(mob));
   cout<<"\n Do you want to continue:";
   cin>>p;
  }while(p=='y'||p=='Y');
  ofile.close();
  ofile.open("TEMP.DAT",ios::out|ios::binary);
  ifstream ifile;
  ifile.open("MOBILE.DAT",ios::in|ios::binary);
  if(!ifile || !ofile)
  { cout<<"\n File can not read";
    exit(1);
  }
  int flag=0,r;
  cout<<"\n Enter the model number you want to delete:";
  cin>>r;
  while(ifile.read((char*)&mob,sizeof(mob)))
  { if(mob.get_modelno()==r)
    { flag=1;
    }
    else
     ofile.write((char *)&mob,sizeof(mob));
  }

if(flag==0)
cout<<"\n Unsuccessful search";
ofile.close();
ifile.close();
remove("MOBILE.DAT");
rename("TEMP.DAT","MOBILE.DAT");
ifile.open("MOBILE.DAT",ios::in|ios::binary);
cout<<"\n Records After Deletion: ";
  while(ifile.read((char*)&mob,sizeof(mob)))
  { mob.show();
    getch();
  }
 ifile.close();
 getch();
}

//program to enter the details of books
#include<iostream.h>
#include<conio.h>
#include<process.h>
#include<fstream.h>
#include<stdio.h>

struct BOOK
{ int BookNo;
  char BookTitle[20];
  int Price;
  int Edition;
}obj;
void main()
{ clrscr();
  int no;
  char p;

  ofstream ofile;
  ofile.open("BOOKS.DAT",ios::app|ios::binary) ;
  if(!ofile)
  { cout<<"\n File can not open";
exit(1);
  }

  do
  { cout<<"\n Enter the book no:";
cin>>obj.BookNo;
cout<<"\n Enter the book title:";
gets(obj.BookTitle);
cout<<"\n Enter the price of book:";
cin>>obj.Price;
cout<<"\n Enter the Edition:";
cin>>obj.Edition;
ofile.write((char*)&obj,sizeof(obj));
cout<<"\n Do you want to continue:";
cin>>p;
  }while(p=='y'||p=='Y');
  ofile.close();
  ifstream ifile;
  ifile.open("BOOKS.DAT",ios::in|ios::binary);
  if(!ifile)
  { cout<<"\n File can not read";
exit(1);
  }
  int flag=0;
  cout<<"\n Enter the book number whose details you want to search:";
  cin>>no;

  while(ifile.read((char *)&obj,sizeof(obj)))
  { if(obj.BookNo==no)
       {flag=1;
cout<<"\n  the book no:"<<obj.BookNo;
cout<<"\n  the book title:"<<obj.BookTitle;
cout<<"\n the price of book:"<<obj.Price;
cout<<"\n  the number of copies:"<<obj.Edition;
break;
      }
  }
  if(flag==0)
cout<<"Record not found";

  ifile.close();
  getch();
}

//program to enter a poem and to calculate number of vowel and consonants
#include<fstream.h>
#include<conio.h>
#include<process.h>
#include<ctype.h>
#include<string.h>
#include<stdio.h>
void main()
{ clrscr();
  char ch[100],charc,charw[10];
  int count1=0,count2=0;
  ofstream ofile;
  ofile.open("POEM.TXT",ios::out);
  if(!ofile)
  { cout<<"\n File can't be open";
exit(1);
  }
cout<<"\n Enter the poem:";
gets(ch);
ofile<<ch;

  ofile.close();
  ifstream ifile, ifile1;
  ifile.open("POEM.TXT",ios::in);
  if(!ifile)
  { cout<<"\n File can not read";
exit(1);
  }
  while(ifile>>charc)
  { charc=toupper(charc);
    if(charc=='A'||charc=='E'||charc=='I'||charc=='O'||charc=='U')
count1++;
  }

  cout<<"\n Number of vowel="<<count1;
  ifile.close();

  ifile1.open("POEM.TXT",ios::in);
  if(!ifile1)
  { cout<<"\n File can not read";
    exit(1);
  }
  while(ifile1)
{  ifile1>>charw;
if(strcmpi(charw,"the")==0)
count2++;
}
  cout<<"\n Number of 'the'="<<count2;
  ifile1.close();
  getch();
}

//program for inheritance
#include<iostream.h>
#include<conio.h>
class base
{ public:
  int x;
  int y;
  base(int p,int a)
  { cout<<"\n Base class constructor invoked";
x=p;
y=a;
  }
  ~base()
  { cout<<"\n Base class destructor invoked";
    getch();
  }

};
class derived:public base
{ public:
  int d;
  int e;
  derived(int k,int l,int x,int y):base(x,y)
  { d=k;
e=l;
cout<<"\n Derived class constructor invoked";
cout<<"\n SUM="<<(d+e+x+y);
  }
  ~derived()
  { cout<<"\n Derived class destructor invoked";
    getch();
  }
};
void main()
{ clrscr();
  int f,g,h,i;
  cout<<"\n Enter the value of first integer of base class:";
  cin>>f;
  cout<<"\n Enter the value of second integer of base class:";
  cin>>g;
  cout<<"\n Enter the value of first integer of derived class:";
  cin>>h;
  cout<<"\n Enter the value of second integer of derived class:";
  cin>>i;
  base obj1(f,g);
  derived obj2(h,i,f,g);
  getch();
}

//program to find the sum of two matrices by using objects
#include<iostream.h>
#include<conio.h>
class MATRIX
{ private:
  int a[20][20];
  int m;
  int n;
 public:
  void enter();
  void display();
  void add_mat(MATRIX,MATRIX);
} obj;
void MATRIX::enter()
{cout<<"\n Enter the number of rows:";
 cin>>m;
 cout<<"\n Enter the number of columns:";
 cin>>n;
 cout<<"\n Enter the elements of matrix:";
  for(int i=0;i<m;i++)
  { for(int j=0;j<n;j++)
{ cout<<"\n Enter a["<<i<<"]["<<j<<"]:";
cin>>a[i][j];
}
  }

 }
void MATRIX::display()
{
  cout<<"\n matrix is:";
  for(int i=0;i<m;i++)
  { cout<<"\n";
for(int j=0;j<n;j++)
cout<<a[i][j]<<" ";
  }
}
void MATRIX::add_mat(MATRIX A1,MATRIX A2)
{     if(A1.m==A2.m && A1.n==A2.n)
      {
obj.m=A1.m;
obj.n=A2.n;
for(int i=0;i<A1.m;i++)
for(int j=0;j<A2.n;j++)
{
obj.a[i][j]=A1.a[i][j]+A2.a[i][j];
}
cout<<"\n Addition of matrices:";
obj.display();
      }
     else
     {
      cout<<"\n\nMatrices cannot be added!!!";
      getch();
     }
}
void main()
{ clrscr();
  MATRIX a1,a2,a3;
  a1.enter();
  a1.display();
  a2.enter();
  a2.display();
  a3.add_mat(a1,a2);
  getch();
  } 

//program to maintain the record of candidates
#include<iostream.h>
#include<conio.h>
#include<string.h>
#include<stdio.h>
class CANDIDATE
{ int CRNo;
  char Name[10] ;
  float Score;
  char   Grade;
  void ComputeGrade();
 public:
  CANDIDATE()
  {CRNo =0;
   strcpy(Name,"Not Assigned");
   Score=0.0;
   Grade='-';
  }
  void inputdata();
  void displaydata();
};
  void CANDIDATE::inputdata()
  { cout<<"\n ENTER CRNo. :";
cin>>CRNo;
cout<<"\n ENTER YOUR NAME :";
gets(Name);
cout<<"\n ENTER YOUR SCORE:";
cin>>Score;
ComputeGrade();
   }
  void CANDIDATE::displaydata()
  {      cout<<"\n\n\t CRNo = "<<CRNo
<<"\n\t NAME ="<<Name
<<"\n\t SCORE ="<<Score
<<"\n\t Grade ="<<Grade;
  }
  void CANDIDATE::ComputeGrade()
  { if(Score>=90)
  Grade='A';
else if(Score>=75)
  Grade='B';
else if(Score>=60)
  Grade='C';
else if(Score>=45)
  Grade='D';
else if(Score>=33)
  Grade='E';
else
  Grade='F';
 }
void main()
{clrscr();
int i,pno;
CANDIDATE obj[2];
cout<<"\n ENTER THE DETAILS OF THE CANDIDATE";
for(i=0;i<2;i++)
{ cout<<"\n ENTER THE DETAILS OF THE CANDIDATE No "<<i+1;
  obj[i].inputdata();
}
for(i=0;i<2;i++)
{obj[i].displaydata();
 getch();
}

getch();
}