human
Give me a code to search in an almost sorted array and the other steps required given the following:
Search in an almost sorted array | A recursive binary search based function . It returns index of x in given array arr [ l . . r ] is present , otherwise - 1.
If the element is present at one of the middle 3 positions.
If element is smaller than mid , then it can only be present in left subarray.
Else the element can only be present in right subarray.
We reach here when element is not present in array.
Driver Code"
Solution in Python:
assistant
#Here is code to search in an almost sorted array and the other steps required.
 def binarySearch ( arr , l , r , x ) :
	if ( r >= l ) :
		mid = int ( l + ( r - l ) / 2 )
		if ( arr [ mid ] == x ) : return mid
		if ( mid > l and arr [ mid - 1 ] == x ) :
			return ( mid - 1 )
		if ( mid < r and arr [ mid + 1 ] == x ) :
			return ( mid + 1 )
		if ( arr [ mid ] > x ) :
			return binarySearch ( arr , l , mid - 2 , x )
		return binarySearch ( arr , mid + 2 , r , x )
	return - 1
arr = [ 3 , 2 , 10 , 4 , 40 ]
n = len ( arr )
x = 4
result = binarySearch ( arr , 0 , n - 1 , x )
if ( result == - 1 ) :
	print ( " Element ▁ is ▁ not ▁ present ▁ in ▁ array " )
else :
	print ( " Element ▁ is ▁ present ▁ at ▁ index " , result )