Given two strings s and t, return true if they are equal when both are typed into empty text editors. That means if a string contains '#' characters, these characters represent a backspace. They reduce the previous characters in the string by one. Note that no two characters in the string will be the same. Please implement the following function: ```python def backspaceCompare(s: str, t: str) -> bool: ``` ### Constraints: - 1 <= s.length, t.length <= 200 - s and t only contain lowercase letters and '#' characters. ### Example 1: Input: s = "ab#c", t = "ad#c" Output: true ### Example 2: Input: s = "ab##", t = "c#d#" Output: true