src/main/java/com/fishercoder/solutions/_235.java

package com.fishercoder.solutions;

import com.fishercoder.common.classes.TreeNode;

public class _235 {

    public static class Solution1 {
        public TreeNode lowestCommonAncestor(TreeNode root, TreeNode p, TreeNode q) {
            if (root == null || p == root || q == root) {
                return root;
            }
            if (root.val > p.val && root.val > q.val) {
                return lowestCommonAncestor(root.left, p, q);
            } else if (root.val < p.val && root.val < q.val) {
                return lowestCommonAncestor(root.right, p, q);
            }
            return root;
        }
    }

}