human
Count minimum character replacements required such that given string satisfies the given conditions | Function that finds the minimum count of steps required to make the string special.
Stores the frequency of the left & right half of string.
Find frequency of left half.
Find frequency of left half.
Make all characters equal to character c.
Case 1 : For s [ i ] < s [ j ].
Subtract all the characters on left side that are <= d.
Adding all characters on the right side that same as d.
Find minimum value of count.
Similarly for Case 2 : s [ i ] > s [ j ].
Return the minimum changes.
Driver Code.
Given string S.
Function Call"
Solution in Python:

Write me a code to count minimum character replacements required such that given string satisfies the given conditions and the other steps required?
assistant
#Here is code to count minimum character replacements required such that given string satisfies the given conditions and the other steps required.
 def minChange ( s , n ) :
	L = [ 0 ] * 26 ;
	R = [ 0 ] * 26 ;
	for i in range ( 0 , n // 2 ) :
		ch = s [ i ] ;
		L [ ord ( ch ) - ord ( ' a ' ) ] += 1 ;
	for i in range ( n // 2 , n ) :
		ch = s [ i ] ;
		R [ ord ( ch ) - ord ( ' a ' ) ] += 1 ;
	count = n ;
	for ch in range ( ord ( ' a ' ) , ord ( ' z ' ) ) :
		count = min ( count , n - L [ ch - ord ( ' a ' ) ] - R [ ch - ord ( ' a ' ) ] ) ;
	change = n / 2 ;
	for d in range ( 0 , 25 ) :
		change -= L [ d ] ;
		change += R [ d ] ;
		count = min ( count , change ) ;
	change = n / 2 ;
	for d in range ( 0 , 25 ) :
		change -= R [ d ] ;
		change += L [ d ] ;
		count = min ( change , count ) ;
	return int ( count ) ;
if __name__ == ' _ _ main _ _ ' :
	S = " aababc " ;
	N = len ( S ) ;
	print ( minChange ( S , N ) ) ;