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32 lines
552 B
Go
32 lines
552 B
Go
package leetcode
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import (
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"github.com/halfrost/LeetCode-Go/structures"
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)
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// TreeNode define
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type TreeNode = structures.TreeNode
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/**
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* Definition for a binary tree node.
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* type TreeNode struct {
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* Val int
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* Left *TreeNode
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* Right *TreeNode
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* }
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*/
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func postorderTraversal(root *TreeNode) []int {
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var result []int
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postorder(root, &result)
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return result
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}
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func postorder(root *TreeNode, output *[]int) {
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if root != nil {
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postorder(root.Left, output)
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postorder(root.Right, output)
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*output = append(*output, root.Val)
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}
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}
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