Java | Leetcode Java题解之第235题二叉搜索树的最近公共祖先

题目：

题解：

class Solution {     public TreeNode lowestCommonAncestor(TreeNode root, TreeNode p, TreeNode q) {         TreeNode ancestor = root;         while (true) {             if (p.val < ancestor.val && q.val < ancestor.val) {                 ancestor = ancestor.left;             } else if (p.val > ancestor.val && q.val > ancestor.val) {                 ancestor = ancestor.right;             } else {                 break;             }         }         return ancestor;     } }