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966. Vowel Spellchecker

中文文档

Description

Given a wordlist, we want to implement a spellchecker that converts a query word into a correct word.

For a given query word, the spell checker handles two categories of spelling mistakes:

    <li>Capitalization: If the query matches a word in the wordlist (<strong>case-insensitive</strong>), then the query word is returned with the same case as the case in the wordlist.



<ul>

	<li>Example: <code>wordlist = [&quot;yellow&quot;]</code>, <code>query = &quot;YellOw&quot;</code>: <code>correct = &quot;yellow&quot;</code></li>

	<li>Example: <code>wordlist = [&quot;Yellow&quot;]</code>, <code>query = &quot;yellow&quot;</code>: <code>correct = &quot;Yellow&quot;</code></li>

	<li>Example: <code>wordlist = [&quot;yellow&quot;]</code>, <code>query = &quot;yellow&quot;</code>: <code>correct = &quot;yellow&quot;</code></li>

</ul>

</li>

<li>Vowel Errors: If after replacing the vowels (&#39;a&#39;, &#39;e&#39;, &#39;i&#39;, &#39;o&#39;, &#39;u&#39;) of the query word with any vowel individually, it matches a word in the wordlist (<strong>case-insensitive</strong>), then the query word is returned with the same case as the match in the wordlist.

<ul>

	<li>Example: <code>wordlist = [&quot;YellOw&quot;]</code>, <code>query = &quot;yollow&quot;</code>: <code>correct = &quot;YellOw&quot;</code></li>

	<li>Example: <code>wordlist = [&quot;YellOw&quot;]</code>, <code>query = &quot;yeellow&quot;</code>: <code>correct = &quot;&quot;</code> (no match)</li>

	<li>Example: <code>wordlist = [&quot;YellOw&quot;]</code>, <code>query = &quot;yllw&quot;</code>: <code>correct = &quot;&quot;</code> (no match)</li>

</ul>

</li>

In addition, the spell checker operates under the following precedence rules:

    <li>When the query exactly matches a word in the wordlist (<strong>case-sensitive</strong>), you should return the same word back.</li>

<li>When the query matches a word up to capitlization, you should return the first such match in the wordlist.</li>

<li>When the query matches a word up to vowel errors, you should return the first such match in the wordlist.</li>

<li>If the query has no matches in the wordlist, you should return the empty string.</li>

Given some queries, return a list of words answer, where answer[i] is the correct word for query = queries[i].

 

Example 1:

Input: wordlist = ["KiTe","kite","hare","Hare"], queries = ["kite","Kite","KiTe","Hare","HARE","Hear","hear","keti","keet","keto"]

Output: ["kite","KiTe","KiTe","Hare","hare","","","KiTe","","KiTe"]

 

Note:

    <li><code>1 &lt;= wordlist.length &lt;= 5000</code></li>

<li><code>1 &lt;= queries.length &lt;= 5000</code></li>

<li><code>1 &lt;= wordlist[i].length &lt;= 7</code></li>

<li><code>1 &lt;= queries[i].length &lt;= 7</code></li>

<li>All strings in <code>wordlist</code> and <code>queries</code> consist only of <strong>english</strong>&nbsp;letters.</li>

Solutions

Python3



Java




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