LeetCode108.有序数组转二叉搜索树

题目

 1 class Solution {
 2 public:
 3     TreeNode* sortedArrayToBST(vector<int>& nums) {
 4         if(nums.size() == 0) return NULL;
 5         return build_BST(nums,0,nums.size()-1);
 6     }
 7     TreeNode* build_BST(vector<int>& nums,int low,int high){
 8         if(low > high) return NULL;
 9 
10         int mid = (low + high) / 2; 
11         TreeNode* root = new TreeNode(nums[mid]); 
12         root->left = build_BST(nums,low,mid-1);
13         root->right = build_BST(nums,mid+1,high);
14         return root;
15     }
16 };

出现 AddressSanitizer:DEADLYSIGNAL stackoverflow的错误内存溢出，去查看递归出口是否写了？是否正确？