Building a BST(binary search tree)
public class BuildBST {
public static class Node {
int data;
Node left, right;
Node(int data) {
this.data = data;
this.left = null;
this.right = null;
}
}
public static Node Insert(Node root, int val) {
if (root == null) {
root = new Node(val);
return root;
}
if (root.data > val) {
// LEFT SUBTREE
root.left= Insert(root.left, val);
} else {
// RIGHT SUBTREE
root.right=Insert(root.right, val);
}
return root;
}
public static void inorder(Node root) {
if (root == null) {
return;
}
inorder(root.left);
System.out.print(root.data + " ");
inorder(root.right);
}
public static void main(String[] args) {
int values[] = { 5, 1, 3, 4, 2, 7 };
Node root = null;
// TO INSERT NODES
for (int i = 0; i < values.length; i++) {
root= Insert(root, values[i]);
}
inorder(root);
}
}
Comments
Post a Comment