You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
23 lines
431 B
23 lines
431 B
// File: preorder_traversal_i_compact.go
|
|
// Created Time: 2023-05-09
|
|
// Author: Reanon (793584285@qq.com)
|
|
|
|
package chapter_backtracking
|
|
|
|
import (
|
|
. "github.com/krahets/hello-algo/pkg"
|
|
)
|
|
|
|
/* 前序遍历：例题一 */
|
|
func preOrderI(root *TreeNode, res *[]*TreeNode) {
|
|
if root == nil {
|
|
return
|
|
}
|
|
if (root.Val).(int) == 7 {
|
|
// 记录解
|
|
*res = append(*res, root)
|
|
}
|
|
preOrderI(root.Left, res)
|
|
preOrderI(root.Right, res)
|
|
}
|