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Diameter of Binary Tree in scala

Sumit Rawal answered on September 2, 2023 Popularity 1/10 Helpfulness 1/10

answer Diameter of Binary Tree in scala

Diameter of Binary Tree in scala

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object DiameterOfBinaryTree {
  case class TreeNode(value: Int, left: Option[TreeNode], right: Option[TreeNode])

  def diameterOfBinaryTree(root: Option[TreeNode]): Int = {
    var diameter = 0

    def depth(node: Option[TreeNode]): Int = {
      node match {
        case Some(n) =>
          val leftDepth = depth(n.left)
          val rightDepth = depth(n.right)
          diameter = math.max(diameter, leftDepth + rightDepth)
          math.max(leftDepth, rightDepth) + 1
        case None => 0
      }
    }

    depth(root)
    diameter
  }

  def main(args: Array[String]): Unit = {
    // Example binary tree:
    //        1
    //       / \
    //      2   3
    //     / \
    //    4   5
    val tree = Some(TreeNode(1, Some(TreeNode(2, Some(TreeNode(4, None, None)), Some(TreeNode(5, None, None)))), Some(TreeNode(3, None, None))))
    val result = diameterOfBinaryTree(tree)
    println(s"Diameter of the binary tree: $result")
  }
}

Popularity 1/10 Helpfulness 1/10 Language scala

Source: chat.openai.com

Tags: binary-tree scala

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Contributed on Sep 02 2023

Sumit Rawal

0 Answers Avg Quality 2/10

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