human
Minimize a binary string by repeatedly removing even length substrings of same characters | Recursive function to print stack elements from bottom to top without changing their order.
If stack is empty.
Pop top element of the stack.
Recursively call the function PrintStack.
Print the stack element from the bottom.
Push the same element onto the stack to preserve the order.
Function to minimize binary string by removing substrings consisting of same character.
Declare a stack of characters.
Push the first character of the string into the stack.
Traverse the string s.
If Stack is empty.
Push current character into the stack.
Check if the current character is same as the top of the stack.
If true , pop the top of the stack.
Otherwise , push the current element.
Print stack from bottom to top.
Driver Code"
Solution in Python:
assistant
#Here is code to minimize a binary string by repeatedly removing even length substrings of same characters and the other steps required.
 def PrintStack ( s ) :
	if ( len ( s ) == 0 ) :
		return ;
	x = s [ - 1 ] ;
	s . pop ( ) ;
	PrintStack ( s ) ;
	print ( x , end = " " ) ;
	s . append ( x ) ;
def minString ( s ) :
	Stack = [ ] ;
	Stack . append ( s [ 0 ] ) ;
	for i in range ( 1 , len ( s ) ) :
		if ( len ( Stack ) == 0 ) :
			Stack . append ( s [ i ] ) ;
		else :
			if ( Stack [ - 1 ] == s [ i ] ) :
				Stack . pop ( ) ;
			else :
				Stack . append ( s [ i ] ) ;
	PrintStack ( Stack ) ;
if __name__ == " _ _ main _ _ " :
	string = "101001" ;
	minString ( string ) ;