void main(void)
{
DataType q;
q.key = 1; q.ID = 'a';
y.Insert(q);
q.key = 6; q.ID = 'b';
y.Insert(q);
q.key = 4; q.ID = 'c';
y.Insert(q);
q.key = 8; q.ID = 'd';
y.Insert(q);
cout << "Elements in ascending order are" << endl;
y.Ascend();
DataType s;
y.Delete(4,s);
cout << "Delete of 4 succeeds " << endl;
cout << s.key << ' ' << s.ID << endl;
cout << "Elements in ascending order are" << endl;
y.Ascend();
y.Delete(8,s);
cout << "Delete of 8 succeeds " << endl;
cout << s.key << ' ' << s.ID << endl;
cout << "Elements in ascending order are" << endl;
y.Ascend();
y.Delete(6,s);
cout << "Delete of 6 succeeds " << endl;
cout << s.key << ' ' << s.ID << endl;
cout << "Elements in ascending order are" << endl;
y.Ascend();
try {y.Delete(6,s);}
catch (BadInput)
{cout << "Delete of 6 fails " << endl;}
cout << "Elements in ascending order are" << endl;
y.Ascend();
}
