human
Minimize length of a string by removing pairs of consecutive increasing or decreasing digits | Function to find the minimum length of the string possible after removing pairs of consecutive digits.
Initialize the stack st.
Traverse the string S.
If the stack is empty.
Otherwise.
Get the top character of the stack.
If cha and top are consecutive digits.
Otherwise , push the character ch.
Print the size of the stack.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to minimize length of a string by removing pairs of consecutive increasing or decreasing digits and the other steps required.
 def minLength ( S ) :
	st = [ ]
	for ch in S :
		if ( len ( st ) == 0 ) :
			st . append ( ch )
		else :
			top = st [ - 1 ]
			if ( abs ( ord ( ch ) - ord ( top ) ) == 1 ) :
				st . pop ( )
			else :
				st . append ( ch )
	return len ( st )
if __name__ == " _ _ main _ _ " :
	S = "12213"
	print ( minLength ( S ) )