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leetcode-problemset/leetcode-cn/problem (Chinese)/有效的字母异位词 [valid-anagram].html
2022-03-29 12:43:11 +08:00

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<p>给定两个字符串 <code><em>s</em></code><code><em>t</em></code> ,编写一个函数来判断 <code><em>t</em></code> 是否是 <code><em>s</em></code> 的字母异位词。</p>
<p><strong>注意:</strong>若 <code><em>s</em></code><code><em>t</em></code><em> </em>中每个字符出现的次数都相同,则称 <code><em>s</em></code><code><em>t</em></code><em> </em>互为字母异位词。</p>
<p> </p>
<p><strong>示例 1:</strong></p>
<pre>
<strong>输入:</strong> <em>s</em> = "anagram", <em>t</em> = "nagaram"
<strong>输出:</strong> true
</pre>
<p><strong>示例 2:</strong></p>
<pre>
<strong>输入:</strong> <em>s</em> = "rat", <em>t</em> = "car"
<strong>输出: </strong>false</pre>
<p> </p>
<p><strong>提示:</strong></p>
<ul>
<li><code>1 <= s.length, t.length <= 5 * 10<sup>4</sup></code></li>
<li><code>s</code><code>t</code> 仅包含小写字母</li>
</ul>
<p> </p>
<p><strong>进阶: </strong>如果输入字符串包含 unicode 字符怎么办?你能否调整你的解法来应对这种情况?</p>