1147. Longest Chunked Palindrome Decomposition

https://leetcode.com/problems/longest-chunked-palindrome-decomposition

Description

You are given a string text. You should split it to k substrings (subtext1, subtext2, ..., subtextk) such that:

  • subtexti is a non-empty string.

  • The concatenation of all the substrings is equal to text (i.e., subtext1 + subtext2 + ... + subtextk == text).

  • subtexti == subtextk - i + 1 for all valid values of i (i.e., 1 <= i <= k).

Return the largest possible value of k.

Example 1:

**Input:** text = "ghiabcdefhelloadamhelloabcdefghi"
**Output:** 7
**Explanation:** We can split the string on "(ghi)(abcdef)(hello)(adam)(hello)(abcdef)(ghi)".

Example 2:

**Input:** text = "merchant"
**Output:** 1
**Explanation:** We can split the string on "(merchant)".

Example 3:

**Input:** text = "antaprezatepzapreanta"
**Output:** 11
**Explanation:** We can split the string on "(a)(nt)(a)(pre)(za)(tpe)(za)(pre)(a)(nt)(a)".

Example 4:

**Input:** text = "aaa"
**Output:** 3
**Explanation:** We can split the string on "(a)(a)(a)".

Constraints:

  • 1 <= text.length <= 1000

  • text consists only of lowercase English characters.

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