COMPLEJIDAD GETPADRE

                                                                             //O(1)
     protected NodoBin<T> getPadre(NodoBin<T> r){                               //T=4+max(1,0)+5+1+max(1,0)+1 = 4+1+6+1+1 = 13
        if(r==null || this.raiz==null)                                          //4+max
            return null;                                                        //1
        NodoBin<T> x=getPadre(this.raiz,r.getInfo());                    //5
        if(x==null)                                                             //1+max
            return null;                                                        //1
        return(x);                                                              //1
     }
T=4+max(1,0)+5+1+max(1,0)+1
T=4+1+6+1+1 = 13

T=13

O(1)