java.lang.Object
g1601_1700.s1616_split_two_strings_to_make_palindrome.Solution

public class Solution extends java.lang.Object
1616 - Split Two Strings to Make Palindrome.

Medium

You are given two strings a and b of the same length. Choose an index and split both strings at the same index , splitting a into two strings: aprefix and asuffix where a = aprefix + asuffix, and splitting b into two strings: bprefix and bsuffix where b = bprefix + bsuffix. Check if aprefix + bsuffix or bprefix + asuffix forms a palindrome.

When you split a string s into sprefix and ssuffix, either ssuffix or sprefix is allowed to be empty. For example, if s = "abc", then "" + "abc", "a" + "bc", "ab" + "c" , and "abc" + "" are valid splits.

Return true if it is possible to form a palindrome string, otherwise return false.

Notice that x + y denotes the concatenation of strings x and y.

Example 1:

Input: a = “x”, b = “y”

Output: true Explaination: If either a or b are palindromes the answer is true since you can split in the following way:

aprefix = "", asuffix = “x”

bprefix = "", bsuffix = “y”

Then, aprefix + bsuffix = "" + “y” = “y”, which is a palindrome.

Example 2:

Input: a = “xbdef”, b = “xecab”

Output: false

Example 3:

Input: a = “ulacfd”, b = “jizalu”

Output: true Explaination: Split them at index 3:

aprefix = “ula”, asuffix = “cfd”

bprefix = “jiz”, bsuffix = “alu”

Then, aprefix + bsuffix = “ula” + “alu” = “ulaalu”, which is a palindrome.

Constraints:

  • 1 <= a.length, b.length <= 105
  • a.length == b.length
  • a and b consist of lowercase English letters
  • Constructor Summary

    Constructors
    Constructor
    Description
     
  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    checkPalindromeFormation(java.lang.String a, java.lang.String b)
     

    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

    • checkPalindromeFormation

      public boolean checkPalindromeFormation(java.lang.String a, java.lang.String b)