human
Write me a code to minimum swaps required to make a binary string divisible by 2 ^ k and the other steps required given the following:
Minimum swaps required to make a binary string divisible by 2 ^ k | Function to return the minimum swaps required.
To store the final answer.
To store the count of one and zero.
Loop from end of the string.
If s [ i ] = 1.
If s [ i ] = 0.
If c_zero = k.
If the result can 't  be achieved.
Return the final answer.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to minimum swaps required to make a binary string divisible by 2 ^ k and the other steps required.
 def findMinSwaps ( s , k ) :
	ans = 0 ;
	c_one = 0 ; c_zero = 0 ;
	for i in range ( len ( s ) - 1 , - 1 , - 1 ) :
		if ( s [ i ] == '1' ) :
			c_one += 1 ;
		if ( s [ i ] == '0' ) :
			c_zero += 1 ;
			ans += c_one ;
		if ( c_zero == k ) :
			break ;
	if ( c_zero < k ) :
		return - 1 ;
	return ans ;
if __name__ == " _ _ main _ _ " :
	s = "100111" ;
	k = 2 ;
	print ( findMinSwaps ( s , k ) ) ;