java.lang.Object
g1301_1400.s1316_distinct_echo_substrings.Solution

public class Solution extends Object
1316 - Distinct Echo Substrings.<p>Hard</p> <p>Return the number of <strong>distinct</strong> non-empty substrings of <code>text</code> that can be written as the concatenation of some string with itself (i.e. it can be written as <code>a + a</code> where <code>a</code> is some string).</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> text = &ldquo;abcabcabc&rdquo;</p> <p><strong>Output:</strong> 3</p> <p><strong>Explanation:</strong> The 3 substrings are &ldquo;abcabc&rdquo;, &ldquo;bcabca&rdquo; and &ldquo;cabcab&rdquo;.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> text = &ldquo;leetcodeleetcode&rdquo;</p> <p><strong>Output:</strong> 2</p> <p><strong>Explanation:</strong> The 2 substrings are &ldquo;ee&rdquo; and &ldquo;leetcodeleetcode&rdquo;.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= text.length <= 2000</code></li> <li><code>text</code> has only lowercase English letters.</li> </ul>
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • distinctEchoSubstrings

      public int distinctEchoSubstrings(String text)