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34 lines
1.3 KiB
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<p>给你一个 <strong>不含重复 </strong>单词的字符串数组 <code>words</code> ，请你找出并返回 <code>words</code> 中的所有 <strong>连接词</strong> 。</p>
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<p><strong>连接词</strong> 定义为：一个完全由给定数组中的至少两个较短单词（不一定是不同的两个单词）组成的字符串。</p>
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<p> </p>
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<p><strong>示例 1：</strong></p>
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<pre>
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<strong>输入：</strong>words = ["cat","cats","catsdogcats","dog","dogcatsdog","hippopotamuses","rat","ratcatdogcat"]
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<strong>输出：</strong>["catsdogcats","dogcatsdog","ratcatdogcat"]
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<strong>解释：</strong>"catsdogcats" 由 "cats", "dog" 和 "cats" 组成;
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"dogcatsdog" 由 "dog", "cats" 和 "dog" 组成;
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"ratcatdogcat" 由 "rat", "cat", "dog" 和 "cat" 组成。
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</pre>
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<p><strong>示例 2：</strong></p>
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<pre>
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<strong>输入：</strong>words = ["cat","dog","catdog"]
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<strong>输出：</strong>["catdog"]</pre>
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<p> </p>
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<p><strong>提示：</strong></p>
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<ul>
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<li><code>1 <= words.length <= 10<sup>4</sup></code></li>
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<li><code>1 <= words[i].length <= 30</code></li>
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<li><code>words[i]</code> 仅由小写英文字母组成。 </li>
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<li><code>words</code> 中的所有字符串都是 <strong>唯一</strong> 的。</li>
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<li><code>1 <= sum(words[i].length) <= 10<sup>5</sup></code></li>
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</ul>
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