Merge pull request #3459 from Tanishashrivas/issues

solution to problem 0701

Author: ajay-dhangar

dsa-problems/leetcode-problems/0700-0799.md

@@ -20,7 +20,7 @@ export const problems = [
     "problemName": "701. Insert into a Binary Search Tree",
     "difficulty": "Medium",
     "leetCodeLink": "https://leetcode.com/problems/insert-into-a-binary-search-tree",
-    "solutionLink": "#"
+    "solutionLink": "/dsa-solutions/lc-solutions/0700-0799/insert-into-a-binary-search-tree"
   },
   {
     "problemName": "702. Search in a Sorted Array of Unknown Size",
@@ -619,4 +619,4 @@ export const problems = [
     collectionLink="https://leetcode.com/study-plan/programming-skills"
 />
 
-Now, you can see the list of problems in a table format. You can click on the problem link to view the problem on the LeetCode website. You can also click on the solution link to view the solution of the problem.
+Now, you can see the list of problems in a table format. You can click on the problem link to view the problem on the LeetCode website. You can also click on the solution link to view the solution of the problem.

dsa-solutions/lc-solutions/0700-0799/0701-Insert-Into-A-Binary-Search-Tree.md

@@ -0,0 +1,110 @@
+---
+id: insert-into-a-binary-search-tree
+title:   Insert into a Binary Search Tree
+sidebar_label: 701. Insert into a Binary Search Tree
+
+tags:
+- Binary Tree
+- BST
+- Tree
+
+description: "This is a solution to the Insert into a Binary Search Tree problem on LeetCode."
+---
+
+## Problem Description
+You are given the `root` node of a binary search tree (BST) and a `value` to insert into the tree. Return the root node of the BST after the insertion. It is guaranteed that the new value does not exist in the original BST.
+
+Notice that there may exist multiple valid ways for the insertion, as long as the tree remains a BST after insertion. You can return any of them.
+
+### Examples
+
+**Example 1:** 
+
+![Example1](https://github.com/user-attachments/assets/c7df9581-e34c-4cde-a8a3-5b19d37d60c7)
+
+```
+Input: root = [4,2,7,1,3], val = 5
+Output: [4,2,7,1,3,5]
+```
+![Sol1](https://github.com/user-attachments/assets/a454cca0-8878-44e3-8c22-1be2c870cce1)
+
+
+**Example 2:**
+
+```
+Input: root = [40,20,60,10,30,50,70], val = 25
+Output: [40,20,60,10,30,50,70,null,null,25]
+
+```
+
+**Example 3:**
+
+```
+Input: root = [4,2,7,1,3,null,null,null,null,null,null], val = 5
+Output: [4,2,7,1,3,5]
+
+```
+
+
+### Constraints
+
+Certainly! Here is the Markdown for the given constraints without changing any word or statement:
+
+### Constraints
+
+- The number of nodes in the tree will be in the range `[0, 10^4]`.
+- `-10^8 <= Node.val <= 10^8`
+- All the values `Node.val` are unique.
+- `-10^8 <= val <= 10^8`
+- It's guaranteed that val does not exist in the original BST.
+
+
+
+
+## Solutions
+
+```cpp
+    TreeNode* insertIntoBST(TreeNode* a, int x) {
+        
+        if(!a) return new TreeNode(x);
+
+        if(x<a->val)
+            a->left=insertIntoBST(a->left,x);
+        else 
+            a->right=insertIntoBST(a->right,x);
+
+        return a;
+    }
+```
+
+```java
+class Solution {
+    public TreeNode insertIntoBST(TreeNode root, int val) {
+        if(root == null){
+            return new TreeNode(val);
+        }
+
+        if(val < root.val){
+            root.left = insertIntoBST(root.left, val);
+        }
+        else{
+            root.right = insertIntoBST(root.right, val);
+        }
+
+        return root;
+    }
+}
+```
+
+```python
+class Solution:
+    def insertIntoBST(self, root: Optional[TreeNode], val: int) -> Optional[TreeNode]:
+        if root is None: return TreeNode(val) 
+        if root.val > val:  root.left = self.insertIntoBST(root.left, val)
+        else: root.right = self.insertIntoBST(root.right, val)
+        return root
+```
+### Complexity Analysis
+
+- **Time Complexity:** $O(H)$, where $H$ is the height of the BST. In the worst case, the height $H$ can be $N$ for skewed trees.
+- **Space Complexity:** $O(H)$, due to the recursive calls on the call stack. In the worst case, $H$ can be $N$ for skewed trees.