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Program.cs
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Program.cs
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using System;
using System.Collections.Generic;
namespace FindACorrespondingNode
{
public class TreeNode
{
public int val;
public TreeNode left;
public TreeNode right;
public TreeNode(int x) { val = x; }
}
class Program
{
private TreeNode res;
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
}
public TreeNode GetTargetCopy_DFS(TreeNode original, TreeNode cloned, TreeNode target)
{
SearchTarget(cloned, target);
return res;
}
void SearchTarget(TreeNode node, TreeNode target)
{
if (node == null)
return;
if (node.val == target.val)
res = node;
SearchTarget(node.left, target);
SearchTarget(node.right, target);
}
public TreeNode GetTargetCopy_BFS(TreeNode original, TreeNode cloned, TreeNode target)
{
var originalQueue = new Queue<TreeNode>();
var clonedQueue = new Queue<TreeNode>();
originalQueue.Enqueue(original);
clonedQueue.Enqueue(cloned);
while (originalQueue.Count != 0)
{
var originalCur = originalQueue.Dequeue();
var clonedCur = clonedQueue.Dequeue();
if (originalCur == target) return clonedCur;
if (originalCur.left != null)
{
originalQueue.Enqueue(originalCur.left);
clonedQueue.Enqueue(clonedCur.left);
}
if (originalCur.right != null)
{
originalQueue.Enqueue(originalCur.right);
clonedQueue.Enqueue(clonedCur.right);
}
}
return null;
}
}
}