human
Count points which are revisited while following the path specified by a given string | Function to find the number of times already visited position is revisited after starting traversal from { X , Y }.
Stores the x and y temporarily.
Stores the number of times an already visited position is revisited.
Initialize hashset.
Insert the starting coordinates.
Traverse over the string.
Update the coordinates according to the current directions.
If the new { X , Y } has been visited before , then increment the count by 1.
Otherwise.
Insert new { x , y }.
Driver Code"
Solution in Python:

Can you provide a code to count points which are revisited while following the path specified by a given string and the other steps required?
assistant
#Here is code to count points which are revisited while following the path specified by a given string and the other steps required.
 def count ( S , X , Y ) :
	N = len ( S )
	temp_x , temp_y = 0 , 0
	count = 0
	s = { }
	s [ ( X , Y ) ] = 1
	for i in range ( N ) :
		temp_x = X
		temp_y = Y
		if ( S [ i ] == ' U ' ) :
			X += 1
		elif ( S [ i ] == ' D ' ) :
			X -= 1
		elif ( S [ i ] == ' R ' ) :
			Y += 1
		else :
			Y -= 1
		if ( ( temp_x + X , temp_y + Y ) in s ) :
			count += 1
		else :
			s [ ( temp_x + X , temp_y + Y ) ] = 1
	return count
if __name__ == ' _ _ main _ _ ' :
	S = " RDDUDL "
	X , Y = 0 , 0
	print ( count ( S , X , Y ) )