Package g0301_0400.s0301_remove_invalid_parentheses

Class Solution

java.lang.Object
g0301_0400.s0301_remove_invalid_parentheses.Solution
public class Solution extends java.lang.Object
301 - Remove Invalid Parentheses.

Hard

Given a string s that contains parentheses and letters, remove the minimum number of invalid parentheses to make the input string valid.

Return all the possible results. You may return the answer in any order.

Example 1:

Input: s = “()())()”

Output: [“(())()”,“()()()”]

Example 2:

Input: s = “(a)())()”

Output: [“(a())()”,“(a)()()”]

Example 3:

Input: s = “)(”

Output: [""]

Constraints:

  • 1 <= s.length <= 25
  • s consists of lowercase English letters and parentheses '(' and ')'.
  • There will be at most 20 parentheses in s.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.util.List<java.lang.String>
    removeInvalidParentheses(java.lang.String s)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • removeInvalidParentheses

      public java.util.List<java.lang.String> removeInvalidParentheses(java.lang.String s)