human
What is a code to number of substrings with each character occurring even times and the other steps required given the following:
Number of substrings with each character occurring even times | Function to count substrings having even frequency of each character.
Stores the total count of substrings.
Traverse the range [ 0 , N ] :.
Traverse the range [ i + 1 , N ].
Stores the substring over the range of indices [ i , len ].
Stores the frequency of characters.
Count frequency of each character.
Traverse the dictionary.
If any of the keys have odd count.
Otherwise.
Return count.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to number of substrings with each character occurring even times and the other steps required.
 def subString ( s , n ) :
	count = 0
	for i in range ( n ) :
		for len in range ( i + 1 , n + 1 ) :
			test_str = ( s [ i : len ] )
			res = { }
			for keys in test_str :
				res [ keys ] = res . get ( keys , 0 ) + 1
			flag = 0
			for keys in res :
				if res [ keys ] % 2 != 0 :
					flag = 1
					break
			if flag == 0 :
				count += 1
	return count
S = " abbaa "
N = len ( S )
print ( subString ( S , N ) )