Program for the same binary tree in Go (Golang)

Table of Contents

Overview

The objective is to find if two given binary trees are the same or notExampleBelow trees are the same

Tree 1

Tree 2

Program

Here is the program for the same.

package main
import (
"fmt"
)
type TreeNode struct {
Val int
Left *TreeNode
Right *TreeNode
}
func isSameTree(p *TreeNode, q *TreeNode) bool {
if p == nil && q == nil {
return true
}
if p == nil || q == nil {
return false
}
if p.Val != q.Val {
return false
}
return isSameTree(p.Left, q.Left) && isSameTree(p.Right, q.Right)
}
func main() {
root1 := TreeNode{Val: 1}
root1.Left = &TreeNode{Val: 2}
root1.Left.Left = &TreeNode{Val: 4}
root1.Right = &TreeNode{Val: 3}
root1.Right.Left = &TreeNode{Val: 5}
root1.Right.Right = &TreeNode{Val: 6}
root2 := TreeNode{Val: 1}
root2.Left = &TreeNode{Val: 2}
root2.Left.Left = &TreeNode{Val: 4}
root2.Right = &TreeNode{Val: 3}
root2.Right.Left = &TreeNode{Val: 5}
root2.Right.Right = &TreeNode{Val: 6}
output := isSameTree(&root1, &root2)
fmt.Println(output)
root1 = TreeNode{Val: 1}
root1.Left = &TreeNode{Val: 2}
root2 = TreeNode{Val: 1}
root2.Left = &TreeNode{Val: 3}
output = isSameTree(&root1, &root2)
fmt.Println(output)
}

Output

true
false

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