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Copy pathSameTree.java
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36 lines (28 loc) · 914 Bytes
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package Problem100_SameTree;
class TreeNode {
int val;
TreeNode left;
TreeNode right;
TreeNode(int val) {
this.val = val;
}
}
public class SameTree {
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);
}
public static void main(String[] args) {
SameTree sol = new SameTree();
TreeNode tree1 = new TreeNode(1);
tree1.left = new TreeNode(2);
tree1.right = new TreeNode(3);
TreeNode tree2 = new TreeNode(1);
tree2.left = new TreeNode(2);
tree2.right = new TreeNode(3);
boolean result = sol.isSameTree(tree1, tree2);
System.out.println("Are the trees the same? " + result);
}
}