#include struct TreeNode { int val; TreeNode* left; TreeNode* right; explicit TreeNode(int x = 0, TreeNode* l = nullptr, TreeNode* r = nullptr) : val(x), left(l), right(r) {} }; /** * 700. Search in a Binary Search Tree * You are given the root of a binary search tree (BST) and an integer val. * Find the node in the BST that the node's value equals val and return the subtree rooted with that node. If such a node does not exist, return null. */ class Solution { public: TreeNode* searchBST(TreeNode* root, int val) { if (!root || val == root->val) return root; return searchBST(val < root->val ? root->left : root->right, val); } }; int main() { return 0; }