Bottom right view of binary tree in golang

Go program for Bottom right view of binary tree. Here problem description and other solutions.

package main
import "fmt"
/* 
  Go program for
  Print bottom-right view of a binary tree
*/
// Binary Tree Node
type TreeNode struct {
	data int
	left * TreeNode
	right * TreeNode
}
func getTreeNode(data int) * TreeNode {
	// return new TreeNode
	return &TreeNode {
		data,
		nil,
		nil,
	}
}
type BinaryTree struct {
	root * TreeNode
}
func getBinaryTree() * BinaryTree {
	// return new BinaryTree
	return &BinaryTree {
		nil,
	}
}
// Find bottom right elements
func(this BinaryTree) bottomRightView(node * TreeNode, 
	distance int, record map[int] int) {
	if node != nil {
		// Add node of specific distance.
		// This is adding a new element or
		// update existing value
		record[distance] = node.data
		// Visit left subtree And
		// Here increase the distance by 1
		this.bottomRightView(node.left, distance + 1, record)
		// Visit to right subtree
		this.bottomRightView(node.right, distance, record)
	}
}
func(this BinaryTree) printBottomRight() {
	// This is store result
	var record = make(map[int] int)
	this.bottomRightView(this.root, 0, record)
	var distance int = 0
	for (distance < len(record)) {
		// Display bottom right element
		fmt.Print("  ", record[distance])
		distance += 1
	}
}
func main() {
	// Create new tree
	var tree * BinaryTree = getBinaryTree()
	/*
	  Binary Tree
	  -----------------------
	      10
	     /  \
	    2    4
	   /    / \
	  3    6   5
	        \
	         7
	       /  \
	      8    11

	       
	            [⤣⤣⤣⤣]
	            View position
	*/
	// Add node
	tree.root = getTreeNode(10)
	tree.root.left = getTreeNode(2)
	tree.root.left.left = getTreeNode(3)
	tree.root.right = getTreeNode(4)
	tree.root.right.right = getTreeNode(5)
	tree.root.right.left = getTreeNode(6)
	tree.root.right.left.right = getTreeNode(7)
	tree.root.right.left.right.left = getTreeNode(8)
	tree.root.right.left.right.right = getTreeNode(11)
	// Test
	tree.printBottomRight()
}

Output

  5  11  8