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Length of Longest Balanced Subsequence | Python3 program to find length of the longest balanced subsequence.
Variable to count all the open brace that does not have the corresponding closing brace ..
To count all the close brace that does not have the corresponding open brace ..
Iterating over the String.
Number of open braces that hasn 't been closed yet..
Number of close braces that cannot be mapped to any open brace ..
Mapping the ith close brace to one of the open brace ..
Driver Code"
How can the above be solved in Python?

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What is a code to length of Longest Balanced Subsequence and the other steps required?
assistant
#Here is code to length of Longest Balanced Subsequence and the other steps required.
 def maxLength ( s , n ) :
	invalidOpenBraces = 0 ;
	invalidCloseBraces = 0 ;
	for i in range ( n ) :
		if ( s [ i ] == ' ( ' ) :
			invalidOpenBraces += 1
		else :
			if ( invalidOpenBraces == 0 ) :
				invalidCloseBraces += 1
			else :
				invalidOpenBraces -= 1
	return ( n - ( invalidOpenBraces + invalidCloseBraces ) )
s = " ( ) ( ( ( ( ( ( ) "
n = len ( s )
print ( maxLength ( s , n ) )