Linear Search Program in c++

Linear Search Program without class  

#include<iostream.h>
#include<conio.h>
void main()
{
 int a[10],i,n,x,flag=0;
 clrscr();
 cout<<"Enter the size"<<endl;
 cin>>n;
 cout<<"Enter the elements"<<endl;
 for(i=0;i<n;i++)
cin>>a[i];
 cout<<"Enter the element to search"<<endl;
 cin>>x;
 for(i=0;i<n;i++)
 {
if(a[i]==x)
{
flag=1;
break;
}
 }
 if(flag)
cout<<"\n Element "<<x<<" is found at position "<<i+1;
 else
cout<<"\n Element "<<x<<" not found";
getch();
}

Linear Search Program with class 

#include<iostream.h>
#include<conio.h>
class lsearch
{
 public:
int a[10],i,n,x,flag;
 public:
void getdata();
void search();
};
void lsearch::getdata()
{
 cout<<"Enter the size"<<endl;
 cin>>n;
 cout<<"Enter the elements"<<endl;
 for(i=0;i<n;i++)
cin>>a[i];
}
void lsearch::search()
{
 cout<<"Enter the element to be searched"<<endl;
 cin>>x;
 flag=0;
 for(i=0;i<n;i++)
 {
if(a[i]==x)
{
flag=1;
break;
}
 }
 if(flag)
cout<<"Element "<<x<< "found at position "<<i+1;
 else
cout<<"Element "<<x<<"not found";
}
void main()
{
lsearch lse;
clrscr();
lse.getdata();
lse.search();
getch();
}

Linear search Program with Address  --- Array  --- Data

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

class linearsearch

{

 public:

int a[10],i,n,item,flag;

 public:

void getdata();

void search();

};

void linearsearch::getdata()

{

 cout<<"Enter the size"<<endl;

 cin>>n;

 cout<<"Enter the elements"<<endl;

 for(i=0;i<n;i++)

 {

  cout<<"Element a["<<i<<"] :"<<ends;

  cin>>a[i];

  }

cout<<"\nAddress"<<setw(25)<<"Array"<<setw(12)<<"Data"<<endl;

for(i=0;i<n;i++)

 {

  cout<<"\nAddress:"<< &a[i] <<"\tArray:"<<"a["<<i<<"]"<<"\tData:"<<a[i];

  cout<<"\n";

 }

}

void linearsearch::search()

{

 cout<<"Enter the element to be searched"<<endl;

 cin>>item;

 flag=0;

 for(i=0;i<n;i++)

 {

if(a[i]==item)

{

cout<<"Element "<<item<< "found at position "<<i+1;

flag=1;

break;

}

 }

 if(flag==0)

cout<<"Element "<<item<<"not found in the array";

}

void main()

{

linearsearch ls;

clrscr();

ls.getdata();

ls.search();

getch();

}

Output:

Linear search animation video link

https://www.youtube.com/watch?v=PDE8pCQ9Tz4