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Main.java
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Main.java
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package com.company;
import java.util.ArrayList;
import java.util.List;
class TreeNode {
int val;
TreeNode left;
TreeNode right;
TreeNode() {}
TreeNode(int val) { this.val = val; }
TreeNode(int val, TreeNode left, TreeNode right) {
this.val = val;
this.left = left;
this.right = right;
}
}
public class Main {
public static void main(String[] args) {
// write your code here
}
public boolean leafSimilar(TreeNode root1, TreeNode root2) {
List<Integer> nodes1 = new ArrayList<>();
List<Integer> nodes2 = new ArrayList<>();
dfs(root1, nodes1);
dfs(root2, nodes2);
return nodes1.equals(nodes2);
}
public void dfs(TreeNode node, List<Integer> nodes){
if(node == null) return;
if(node.left == node.right) nodes.add(node.val);
dfs(node.left, nodes);
dfs(node.right, nodes);
}
}