计算机科学基础leetcode刷题二叉树
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94. 二叉树的中序遍历

Problem: 94. 二叉树的中序遍历

https://ancientelement.gitee.io/2023/12/06/计算机科学基础/leetcode刷题/二叉树/leetcode二叉树复习/

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/**

 * Definition for a binary tree node.

 * public class TreeNode {

 *     public int val;

 *     public TreeNode left;

 *     public TreeNode right;

 *     public TreeNode(int val=0, TreeNode left=null, TreeNode right=null) {

 *         this.val = val;

 *         this.left = left;

 *         this.right = right;

 *     }

 * }

 */

public class Solution {

    public IList<int> InorderTraversal(TreeNode root) {

        List<int> help = new List<int>();

        ForEach(root,help);

        return help;

    }

    public void ForEach(TreeNode node,IList<int> list) {

        if(node == null) return;

        ForEach(node.left,list);

        list.Add(node.val);

        ForEach(node.right,list);

    }

}