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package leetcode;

public class SameTree {

public static void main(String[] args) {

SameTree test= new SameTree();

TreeNode t = new TreeNode(2);

t.left= new TreeNode(3);

t.right = new TreeNode(4);

TreeNode t2 = new TreeNode(2);

t2.left= new TreeNode(3);

t2.right = new TreeNode(4);

System.out.println(test.isSameTree(t, t2));

}

public boolean isSameTree(TreeNode p, TreeNode q) {

if(p==null && q==null) return true;

if(p==null || q==null) return false;

if(p.val!=q.val) return false;

return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);

}

}

/*class TreeNode {

int val;

TreeNode left;

TreeNode right;

TreeNode(int x) {

val = x;

}

}*/