human
Can you provide a code to longest equal substring with cost less than K and the other steps required given the following:
Longest equal substring with cost less than K | Function to find the maximum length.
Fill the prefix array with the difference of letters.
Update the maximum length.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to longest equal substring with cost less than K and the other steps required.
 def solve ( X , Y , N , K ) :
	count = [ 0 ] * ( N + 1 ) ;
	sol = 0 ;
	count [ 0 ] = 0 ;
	for i in range ( 1 , N + 1 ) :
		count [ i ] = ( count [ i - 1 ] + abs ( ord ( X [ i - 1 ] ) - ord ( Y [ i - 1 ] ) ) ) ;
	j = 0 ;
	for i in range ( 1 , N + 1 ) :
		while ( ( count [ i ] - count [ j ] ) > K ) :
			j += 1 ;
		sol = max ( sol , i - j ) ;
	return sol ;
if __name__ == ' _ _ main _ _ ' :
	N = 4 ;
	X = " abcd " ;
	Y = " bcde " ;
	K = 3 ;
	print ( solve ( X , Y , N , K ) ) ;