human
Give me a code to maximize length of the String by concatenating characters from an Array of Strings and the other steps required given the following:
Maximize length of the String by concatenating characters from an Array of Strings | Function to check if all the string characters are unique.
Check for repetition in characters.
Function to generate all possible strings from the given array.
Base case.
Consider every string as a starting substring and store the generated string.
Add current string to result of other strings and check if characters are unique or not.
Function to find the maximum possible length of a string.
Return max length possible.
Return the answer.
Driver Code"
Solution in Python:
assistant
#Here is code to maximize length of the String by concatenating characters from an Array of Strings and the other steps required.
 def check ( s ) :
	a = set ( )
	for i in s :
		if i in a :
			return False
		a . add ( i )
	return True
def helper ( arr , ind ) :
	if ( ind == len ( arr ) ) :
		return [ " " ]
	tmp = helper ( arr , ind + 1 )
	ret = tmp
	for i in tmp :
		test = i + arr [ ind ]
		if ( check ( test ) ) :
			ret . append ( test )
	return ret
def maxLength ( arr ) :
	tmp = helper ( arr , 0 )
	l = 0
	for i in tmp :
		l = l if l > len ( i ) else len ( i )
	return l
if __name__ == ' _ _ main _ _ ' :
	s = [ ]
	s . append ( " abcdefgh " )
	print ( maxLength ( s ) )