def min_operations_to_good_string(s: str) -> int:
    cnt = 0
    stack = []
    
    for c in s:
        if c == '1':
            stack.append(1)
        else:  # c == '0'
            if stack and stack[-1] == 1:
                stack.pop()  # pair with previous 1
            else:
                cnt += 1  # need to change this 0 to 1
    return cnt