Databases
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Postsdbo
PO
 

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plurals
  1. PO
    primarykey
    data
    text
    <pre><code>class Palindrome { private int center; private int radius; public Palindrome(int center, int radius) { if (radius &lt; 0 || radius &gt; center) throw new Exception("Invalid palindrome."); this.center = center; this.radius = radius; } public int GetMirror(int index) { int i = 2 * center - index; if (i &lt; 0) return 0; return i; } public int GetCenter() { return center; } public int GetLength() { return 2 * radius; } public int GetRight() { return center + radius; } public int GetLeft() { return center - radius; } public void Expand() { ++radius; } public bool LargerThan(Palindrome other) { if (other == null) return false; return (radius &gt; other.radius); } } private static string GetFormatted(string original) { if (original == null) return null; else if (original.Length == 0) return ""; StringBuilder builder = new StringBuilder("#"); foreach (char c in original) { builder.Append(c); builder.Append('#'); } return builder.ToString(); } private static string GetUnFormatted(string formatted) { if (formatted == null) return null; else if (formatted.Length == 0) return ""; StringBuilder builder = new StringBuilder(); foreach (char c in formatted) { if (c != '#') builder.Append(c); } return builder.ToString(); } public static string FindLargestPalindrome(string str) { string formatted = GetFormatted(str); if (formatted == null || formatted.Length == 0) return formatted; int[] radius = new int[formatted.Length]; try { Palindrome current = new Palindrome(0, 0); for (int i = 0; i &lt; formatted.Length; ++i) { radius[i] = (current.GetRight() &gt; i) ? Math.Min(current.GetRight() - i, radius[current.GetMirror(i)]) : 0; current = new Palindrome(i, radius[i]); while (current.GetLeft() - 1 &gt;= 0 &amp;&amp; current.GetRight() + 1 &lt; formatted.Length &amp;&amp; formatted[current.GetLeft() - 1] == formatted[current.GetRight() + 1]) { current.Expand(); ++radius[i]; } } Palindrome largest = new Palindrome(0, 0); for (int i = 0; i &lt; radius.Length; ++i) { current = new Palindrome(i, radius[i]); if (current.LargerThan(largest)) largest = current; } return GetUnFormatted(formatted.Substring(largest.GetLeft(), largest.GetLength())); } catch (Exception ex) { Console.WriteLine(ex); } return null; } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POManacher's algorithm (algorithm to find longest palindrome substring in linear time)
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USGevorg Meliksetyan
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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