/*
 * @lc app=leetcode id=301 lang=javascript
 *
 * [301] Remove Invalid Parentheses
 *
 * https://leetcode.com/problems/remove-invalid-parentheses/description/
 *
 * algorithms
 * Hard (38.52%)
 * Total Accepted:    114.3K
 * Total Submissions: 295.4K
 * Testcase Example:  '"()())()"'
 *
 * Remove the minimum number of invalid parentheses in order to make the input
 * string valid. Return all possible results.
 * 
 * Note: The input string may contain letters other than the parentheses ( and
 * ).
 * 
 * Example 1:
 * 
 * 
 * Input: "()())()"
 * Output: ["()()()", "(())()"]
 * 
 * 
 * Example 2:
 * 
 * 
 * Input: "(a)())()"
 * Output: ["(a)()()", "(a())()"]
 * 
 * 
 * Example 3:
 * 
 * 
 * Input: ")("
 * Output: [""]
 * 
 */
/**
 * @param {string} s
 * @return {string[]}
 */
var removeInvalidParentheses = function(s) {
    
};