#include "bits/stdc++.h"

using namespace std;

namespace lab3{
    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) {}
    };
    void Add(TreeNode *&tree, int x){
        if(tree == nullptr)
            tree = new TreeNode(x);
        else{
            if(tree->val > x){
                if(tree->left != nullptr)
                    Add(tree->left, x);
                else{
                    tree->left = new TreeNode(x);
                }
            }
            if(tree->val < x){
                if(tree->right != nullptr)
                    Add(tree->right, x);
                else{
                    tree->right = new TreeNode(x);
                }
            }
        }
    }
}

#ifndef ALGORITHMS_LAB3_H
#define ALGORITHMS_LAB3_H

#endif //ALGORITHMS_LAB3_H