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leetcode(리트코드)94-Binary Tree Inorder Traversal

leetcode(리트코드)94-Binary Tree Inorder Traversal

leetcode 94 - Binary Tree Inorder Traversal 문제입니다.

1. 문제

https://leetcode.com/problems/binary-tree-inorder-traversal/


2. Input , Output


3. 분류 및 난이도

Medium 난이도 문제입니다.
leetcode Top 100 Liked의 문제입니다.


4. 문제 해석

  • 특별할 게 없는 Inorder 문제입니다.

5. code

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/**
 * Definition for a binary tree node.
 * struct TreeNode {
 *     int val;
 *     TreeNode *left;
 *     TreeNode *right;
 *     TreeNode() : val(0), left(nullptr), right(nullptr) {}
 *     TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
 *     TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}
 * };
 */
class Solution {
public:
    vector<int> result;
    vector<int> inorderTraversal(TreeNode* root) {
        if(root!=nullptr)   
        {
            inorderTraversal(root->left);
            result.push_back(root->val);
            inorderTraversal(root->right);
        }
        return result;
    }
};

6. 결과 및 후기, 개선점

시간(100%)

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