import java.util.*;

public class Q1Arbre{
    private Q1Noeud racine;

    public Q1Arbre(){
        this.racine = null;
    }

    public Q1Arbre(int clef){
        this.racine = new Q1Noeud(clef);
    }

    public Q1Arbre(Q1Noeud racine){
        this.racine = racine;
    }

    public void add(Q1Noeud newNoeud){
        if (this.racine == null){
            this.racine = newNoeud;
        }
        else{
            this.racine.add(newNoeud);
        }
    }

    public void add(int clef){
        if (this.racine == null){
            this.racine = new Q1Noeud(clef);
        }
        else{
            this.racine.add(clef);
        }
    }

    private Q1Noeud plusPetit(){
        if (this.racine != null){
            Q1Noeud minimum = this.racine;
            while (minimum.getPetit() != null){
                minimum = minimum.getPetit();
            }
            return minimum;
        }
        return this.racine;
    }

    private Q1Noeud plusGrand(){
        if (this.racine != null){
            Q1Noeud maximum = this.racine;
            while (maximum.getPetit() != null){
                maximum = maximum.getPetit();
            }
            return maximum;
        }
        return this.racine;
    }

    private Q1Noeud suivant(int clef){
        if (this.racine != null){
            Q1Noeud maximum = this.racine;
            while (maximum.getPetit() != null){
                maximum = maximum.getPetit();
            }
            return maximum;
        }
        return this.racine;
    }

    public void affichage(){
        if (this.racine != null){
            Q1Noeud plusPetit = this.racine;
            while (plusPetit.getPetit() != null){
                plusPetit = plusPetit.getPetit();
            }
            System.out.print(plusPetit);
            while ()
        }
    }
}