Package g0201_0300.s0290_word_pattern

Class Solution

java.lang.Object
g0201_0300.s0290_word_pattern.Solution
public class Solution extends Object
290 - Word Pattern.<p>Easy</p> <p>Given a <code>pattern</code> and a string <code>s</code>, find if <code>s</code> follows the same pattern.</p> <p>Here <strong>follow</strong> means a full match, such that there is a bijection between a letter in <code>pattern</code> and a <strong>non-empty</strong> word in <code>s</code>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> pattern = &ldquo;abba&rdquo;, s = &ldquo;dog cat cat dog&rdquo;</p> <p><strong>Output:</strong> true</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> pattern = &ldquo;abba&rdquo;, s = &ldquo;dog cat cat fish&rdquo;</p> <p><strong>Output:</strong> false</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> pattern = &ldquo;aaaa&rdquo;, s = &ldquo;dog cat cat dog&rdquo;</p> <p><strong>Output:</strong> false</p> <p><strong>Example 4:</strong></p> <p><strong>Input:</strong> pattern = &ldquo;abba&rdquo;, s = &ldquo;dog dog dog dog&rdquo;</p> <p><strong>Output:</strong> false</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= pattern.length <= 300</code></li> <li><code>pattern</code> contains only lower-case English letters.</li> <li><code>1 <= s.length <= 3000</code></li> <li><code>s</code> contains only lower-case English letters and spaces <code>' '</code>.</li> <li><code>s</code> <strong>does not contain</strong> any leading or trailing spaces.</li> <li>All the words in <code>s</code> are separated by a <strong>single space</strong>.</li> </ul>

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • wordPattern

      public boolean wordPattern(String pattern, String s)