sortedArrayToBST.txt added

devc007 · Oct 5, 2022 · d2949d1 · d2949d1
1 parent fec7629
commit d2949d1
Showing 1 changed file with 30 additions and 0 deletions.
diff --git a/LeetCode Solutions/sortedArrayToBST.txt b/LeetCode Solutions/sortedArrayToBST.txt
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+Problem Link - https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/description/
+/**
+ * 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:
+     TreeNode* h(vector<int>& nums,int s,int e){
+         if(s>e){
+             return NULL;
+         }
+         int mid=(s+e)/2;
+          TreeNode* root=new TreeNode(nums[mid]);
+         root->left=h(nums,s,mid-1);
+         root->right=h(nums,mid+1,e);
+         return root;
+     }
+    TreeNode* sortedArrayToBST(vector<int>& nums) {
+        int s=0;
+        int e=nums.size()-1;
+        return h(nums,s,e);
+    }
+};