<p>Given a list of strings <code>words</code> and a string <code>pattern</code>, return <em>a list of</em> <code>words[i]</code> <em>that match</em> <code>pattern</code>. You may return the answer in <strong>any order</strong>.</p> <p>A word matches the pattern if there exists a permutation of letters <code>p</code> so that after replacing every letter <code>x</code> in the pattern with <code>p(x)</code>, we get the desired word.</p> <p>Recall that a permutation of letters is a bijection from letters to letters: every letter maps to another letter, and no two letters map to the same letter.</p> <p> </p> <p><strong>Example 1:</strong></p> <pre> <strong>Input:</strong> words = ["abc","deq","mee","aqq","dkd","ccc"], pattern = "abb" <strong>Output:</strong> ["mee","aqq"] <strong>Explanation:</strong> "mee" matches the pattern because there is a permutation {a -> m, b -> e, ...}. "ccc" does not match the pattern because {a -> c, b -> c, ...} is not a permutation, since a and b map to the same letter. </pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> words = ["a","b","c"], pattern = "a" <strong>Output:</strong> ["a","b","c"] </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= pattern.length <= 20</code></li> <li><code>1 <= words.length <= 50</code></li> <li><code>words[i].length == pattern.length</code></li> <li><code>pattern</code> and <code>words[i]</code> are lowercase English letters.</li> </ul>