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Update 二叉树的递归遍历.md

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zjd
2021-05-12 11:44:30 +08:00
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parent 4d5ed437eb
commit 3e6a1b2d35
1 changed files with 30 additions and 30 deletions
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60
problems/二叉树的递归遍历.md
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@ -125,17 +125,17 @@ Go：
前序遍历: 前序遍历:
``` ```
func PreorderTraversal(root *TreeNode) (res []int) { func PreorderTraversal(root *TreeNode) (res []int) {
var traversal func(node *TreeNode) var traversal func(node *TreeNode)
traversal = func(node *TreeNode) { traversal = func(node *TreeNode) {
if node == nil { if node == nil {
return return
}
res = append(res,node.Val)
traversal(node.Left)
traversal(node.Right)
} }
traversal(root) res = append(res,node.Val)
return res traversal(node.Left)
traversal(node.Right)
}
traversal(root)
return res
} }
``` ```
@ -143,34 +143,34 @@ func PreorderTraversal(root *TreeNode) (res []int) {
``` ```
func InorderTraversal(root *TreeNode) (res []int) { func InorderTraversal(root *TreeNode) (res []int) {
var traversal func(node *TreeNode) var traversal func(node *TreeNode)
traversal = func(node *TreeNode) { traversal = func(node *TreeNode) {
if node == nil { if node == nil {
return return
}
traversal(node.Left)
res = append(res,node.Val)
traversal(node.Right)
} }
traversal(root) traversal(node.Left)
return res res = append(res,node.Val)
traversal(node.Right)
}
traversal(root)
return res
} }
``` ```
后序遍历: 后序遍历:
``` ```
func PostorderTraversal(root *TreeNode) (res []int) { func PostorderTraversal(root *TreeNode) (res []int) {
var traversal func(node *TreeNode) var traversal func(node *TreeNode)
traversal = func(node *TreeNode) { traversal = func(node *TreeNode) {
if node == nil { if node == nil {
return return
}
traversal(node.Left)
traversal(node.Right)
res = append(res,node.Val)
} }
traversal(root) traversal(node.Left)
return res traversal(node.Right)
res = append(res,node.Val)
}
traversal(root)
return res
} }
``` ```