forked from namigoel/hacktober-coding
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathidentical-trees.java
More file actions
61 lines (50 loc) · 1.31 KB
/
Copy pathidentical-trees.java
File metadata and controls
61 lines (50 loc) · 1.31 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
// Java program to see if two trees are identical
// A binary tree node
class Node
{
int data;
Node left, right;
Node(int item)
{
data = item;
left = right = null;
}
}
class BinaryTree
{
Node root1, root2;
/* Given two trees, return true if they are
structurally identical */
boolean identicalTrees(Node a, Node b)
{
/*1. both empty */
if (a == null && b == null)
return true;
/* 2. both non-empty -> compare them */
if (a != null && b != null)
return (a.data == b.data
&& identicalTrees(a.left, b.left)
&& identicalTrees(a.right, b.right));
/* 3. one empty, one not -> false */
return false;
}
/* Driver program to test identicalTrees() function */
public static void main(String[] args)
{
BinaryTree tree = new BinaryTree();
tree.root1 = new Node(1);
tree.root1.left = new Node(2);
tree.root1.right = new Node(3);
tree.root1.left.left = new Node(4);
tree.root1.left.right = new Node(5);
tree.root2 = new Node(1);
tree.root2.left = new Node(2);
tree.root2.right = new Node(3);
tree.root2.left.left = new Node(4);
tree.root2.left.right = new Node(5);
if (tree.identicalTrees(tree.root1, tree.root2))
System.out.println("Both trees are identical");
else
System.out.println("Trees are not identical");
}
}