leetcode701. Insert into a Binary Search Tree

阿新 • • 發佈：2019-04-09

www .com earch arch grand com solution clas search

https://www.cnblogs.com/grandyang/p/9914546.html

類似於二分查找的方法，用叠代的方法去做

註意：無論是進入左子樹還是右子樹，左右子樹都變成了新的數，所以需要重新根據root->left = ....來重新生成

class Solution {
public:
    TreeNode* insertIntoBST(TreeNode* root, int val) {
        if(root == NULL)
            return new TreeNode(val);
        if(root->val < val)
            root 
->right = insertIntoBST(root->right,val);
        if(root->val > val)
            root->left = insertIntoBST(root->left,val);
        return root;
    }
};

leetcode701. Insert into a Binary Search Tree

www .com earch arch grand com solution clas search https://www.cnblogs.com/grandyang/p/9914546.html 類似於二分查找的方法，用叠代的方法去做註意：無論是進入左子樹

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想清楚很好寫。。 /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right;

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