You are given a string s containing lowercase letters and an
integer k. You need to :
s to other lowercase English
letters.
s into k non-empty disjoint
substrings such that each substring is palindrome.
Return the minimal number of characters that you need to change to divide the string.
Example 1:
Input: s = "abc", k = 2 Output: 1 Explanation: You can split the string into "ab" and "c", and change 1 character in "ab" to make it palindrome.
Example 2:
Input: s = "aabbc", k = 3 Output: 0 Explanation: You can split the string into "aa", "bb" and "c", all of them are palindrome.
Example 3:
Input: s = "leetcode", k = 8 Output: 0
Constraints:
1 <= k <= s.length <= 100.s only contains lowercase English letters.