human
Give me a code to minimum number of operations required to obtain a given Binary String and the other steps required given the following:
Minimum number of operations required to obtain a given Binary String | Function to find the minimum number of operations required to obtain the string s.
Iterate the string s.
If first occurrence of 1 is found.
Mark the index.
Base case : If no 1 occurred.
No operations required.
Stores the character for which last operation was performed.
Stores minimum number of operations.
Iterate from pos to n.
Check if s [ i ] is 0.
Check if last operation was performed because of 1.
Set last to 0.
Check if last operation was performed because of 0.
Set last to 1.
Return the answer.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to minimum number of operations required to obtain a given Binary String and the other steps required.
 def minOperations ( s ) :
	n = len ( s )
	pos = - 1
	for i in range ( len ( s ) ) :
		if ( s [ i ] == '1' ) :
			pos = i
			break
	if ( pos == - 1 ) :
		return 0
	last = 1
	ans = 1
	for i in range ( pos + 1 , n ) :
		if ( s [ i ] == '0' ) :
			if ( last == 1 ) :
				ans += 1
				last = 0
		else :
			if ( last == 0 ) :
				ans += 1
				last = 1
	return ans
if __name__ == " _ _ main _ _ " :
	s = "10111"
	print ( minOperations ( s ) )