coder-xiaomo/leetcode-problemset
1
0
Fork 0
mirror of https://gitee.com/coder-xiaomo/leetcode-problemset synced 2025-09-05 07:21:40 +08:00
Code Issues Projects Releases Wiki Activity GitHub Gitee

update

Browse Source
This commit is contained in:
小墨
2022-03-29 12:55:24 +08:00
parent 2b0511d272
commit b84ae535b7
3973 changed files with 51044 additions and 105065 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
leetcode/problem/palindromic-substrings.html Normal file
View File

@@ -0,0 +1,30 @@
<p>Given a string <code>s</code>, return <em>the number of <strong>palindromic substrings</strong> in it</em>.</p>
<p>A string is a <strong>palindrome</strong> when it reads the same backward as forward.</p>
<p>A <strong>substring</strong> is a contiguous sequence of characters within the string.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;abc&quot;
<strong>Output:</strong> 3
<strong>Explanation:</strong> Three palindromic strings: &quot;a&quot;, &quot;b&quot;, &quot;c&quot;.
</pre>
<p><strong>Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;aaa&quot;
<strong>Output:</strong> 6
<strong>Explanation:</strong> Six palindromic strings: &quot;a&quot;, &quot;a&quot;, &quot;a&quot;, &quot;aa&quot;, &quot;aa&quot;, &quot;aaa&quot;.
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 &lt;= s.length &lt;= 1000</code></li>
<li><code>s</code> consists of lowercase English letters.</li>
</ul>