mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-11-04 11:43:12 +08:00
40 lines
1.3 KiB
HTML
40 lines
1.3 KiB
HTML
<p>You are given a string <code>s</code> containing lowercase letters and an integer <code>k</code>. You need to :</p>
|
|
|
|
<ul>
|
|
<li>First, change some characters of <code>s</code> to other lowercase English letters.</li>
|
|
<li>Then divide <code>s</code> into <code>k</code> non-empty disjoint substrings such that each substring is a palindrome.</li>
|
|
</ul>
|
|
|
|
<p>Return <em>the minimal number of characters that you need to change to divide the string</em>.</p>
|
|
|
|
<p> </p>
|
|
<p><strong>Example 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> s = "abc", k = 2
|
|
<strong>Output:</strong> 1
|
|
<strong>Explanation:</strong> You can split the string into "ab" and "c", and change 1 character in "ab" to make it palindrome.
|
|
</pre>
|
|
|
|
<p><strong>Example 2:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> s = "aabbc", k = 3
|
|
<strong>Output:</strong> 0
|
|
<strong>Explanation:</strong> You can split the string into "aa", "bb" and "c", all of them are palindrome.</pre>
|
|
|
|
<p><strong>Example 3:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> s = "leetcode", k = 8
|
|
<strong>Output:</strong> 0
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>1 <= k <= s.length <= 100</code>.</li>
|
|
<li><code>s</code> only contains lowercase English letters.</li>
|
|
</ul>
|