human
Give me a code to remove duplicates from a string in O ( 1 ) extra space and the other steps required given the following:
Remove duplicates from a string in O ( 1 ) extra space | Method to remove duplicates.
Table to keep track of visited characters.
To keep track of end index of resultant string.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to remove duplicates from a string in O ( 1 ) extra space and the other steps required.
 def removeDuplicatesFromString ( string ) :
	table = [ 0 for i in range ( 256 ) ]
	endIndex = 0
	string = list ( string )
	for i in range ( len ( string ) ) :
		if ( table [ ord ( string [ i ] ) ] == 0 ) :
			table [ ord ( string [ i ] ) ] = - 1
			string [ endIndex ] = string [ i ]
			endIndex += 1
	ans = " "
	for i in range ( endIndex ) :
	ans += string [ i ]
	return ans
if __name__ == ' _ _ main _ _ ' :
	temp = " geeksforgeeks "
	print ( removeDuplicatesFromString ( temp ) )