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leetcode-cn/problem (Chinese)/赎金信 [ransom-note].html Normal file
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<p>给你两个字符串：<code>ransomNote</code> 和 <code>magazine</code> ，判断 <code>ransomNote</code> 能不能由 <code>magazine</code> 里面的字符构成。</p>
<p>如果可以，返回 <code>true</code> ；否则返回 <code>false</code> 。</p>
<p><code>magazine</code> 中的每个字符只能在 <code>ransomNote</code> 中使用一次。</p>
<p>&nbsp;</p>
<p><strong>示例 1：</strong></p>
<pre>
<strong>输入：</strong>ransomNote = "a", magazine = "b"
<strong>输出：</strong>false
</pre>
<p><strong>示例 2：</strong></p>
<pre>
<strong>输入：</strong>ransomNote = "aa", magazine = "ab"
<strong>输出：</strong>false
</pre>
<p><strong>示例 3：</strong></p>
<pre>
<strong>输入：</strong>ransomNote = "aa", magazine = "aab"
<strong>输出：</strong>true
</pre>
<p>&nbsp;</p>
<p><strong>提示：</strong></p>
<ul>
<li><code>1 &lt;= ransomNote.length, magazine.length &lt;= 10<sup>5</sup></code></li>
<li><code>ransomNote</code> 和 <code>magazine</code> 由小写英文字母组成</li>
</ul>