string print() {
ostringstream S;
S << "_PAIR(new " << E1->print() << ",new " << E2->print() << "," << A1 << "," << A2 << "," << d1 << "," << d2 << ")";
return S.str();
}
// Usefull to generate the code that will initialize the submitted solution.
string print() {
ostringstream S;
S << "Bucket(" << N << ", new " << E->print() << "," << alpha << ")";
return S.str();
}