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30 lines
1.2 KiB
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30 lines
1.2 KiB
HTML
<p>Given an array of strings <code>words</code>, return <em>the smallest string that contains each string in</em> <code>words</code> <em>as a substring</em>. If there are multiple valid strings of the smallest length, return <strong>any of them</strong>.</p>
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<p>You may assume that no string in <code>words</code> is a substring of another string in <code>words</code>.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> words = ["alex","loves","leetcode"]
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<strong>Output:</strong> "alexlovesleetcode"
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<strong>Explanation:</strong> All permutations of "alex","loves","leetcode" would also be accepted.
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</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> words = ["catg","ctaagt","gcta","ttca","atgcatc"]
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<strong>Output:</strong> "gctaagttcatgcatc"
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= words.length <= 12</code></li>
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<li><code>1 <= words[i].length <= 20</code></li>
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<li><code>words[i]</code> consists of lowercase English letters.</li>
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<li>All the strings of <code>words</code> are <strong>unique</strong>.</li>
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</ul>
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