#include<iostream.h>
	#include<conio.h>
	void main()
	{
		clrscr();
		int a[20]={0};
		int n,x;
		cout<<"Arraysize:";cin>>n;
		cout<<"ENTER ELEMENTS IN ASCENDING ORDER\n";
		for(int i=0;i<n;i++)
			cin>>a[i];
		cout<<"ENTER THE ELEMENT TO BE SEARCHED:\n";
		cin>>x;
		int l=0,u=n,m;
		while(l<u)
		{
			m=(l+u)/2;
			if(x>a[m])l=m+1;
			            else u=m;
		}
		if (a[l]==x)cout<<x<<"\tFOUND AT:\t"<<"a["<<l<<"]";
		                                               else cout<<"NOT FOUND";
		getch();
	}