human
Find the minimum number of preprocess moves required to make two strings equal | Function to return the minimum number of pre - processing moves required on string A.
Length of the given strings.
To store the required answer.
Run a loop upto n / 2.
To store frequency of 4 characters.
If size is 4.
If size is 3.
If size is 2.
If n is odd.
Driver code"
Solution in Python:
 Can you provide a code to find the minimum number of preprocess moves required to make two strings equal and the other steps required?
assistant
#Here is code to find the minimum number of preprocess moves required to make two strings equal and the other steps required.
 def Preprocess ( A , B ) :
	n = len ( A )
	ans = 0
	for i in range ( n // 2 ) :
		mp = dict ( )
		mp [ A [ i ] ] = 1
		if A [ i ] == A [ n - i - 1 ] :
			mp [ A [ n - i - 1 ] ] += 1
		if B [ i ] in mp . keys ( ) :
			mp [ B [ i ] ] += 1
		else :
			mp [ B [ i ] ] = 1
		if B [ n - i - 1 ] in mp . keys ( ) :
			mp [ B [ n - 1 - i ] ] += 1
		else :
			mp [ B [ n - 1 - i ] ] = 1
		sz = len ( mp )
		if ( sz == 4 ) :
			ans += 2
		elif ( sz == 3 ) :
			ans += 1 + ( A [ i ] == A [ n - i - 1 ] )
		elif ( sz == 2 ) :
			ans += mp [ A [ i ] ] != 2
	if ( n % 2 == 1 and A [ n // 2 ] != B [ n // 2 ] ) :
		ans += 1
	return ans
A = " abacaba "
B = " bacabaa "
print ( Preprocess ( A , B ) )