/* -*- C++ -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2003-2007

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #include <iostream>

 #include <lemon/maps.h>

 #include <lemon/unionfind.h>

 #include "test_tools.h"

 using namespace lemon;

 using namespace std;

 typedef UnionFindEnum<StdMap<int, int> > UFE;

 void print(UFE const &ufe) {

   cout << "Print the classes of the structure:" << endl;

   int i = 1;

   for (UFE::ClassIt cit(ufe); cit != INVALID; ++cit) {

     cout << "  " << i << " (" << cit << "):" << flush;

     for (UFE::ItemIt iit(ufe, cit); iit != INVALID; ++iit) {

       cout << " " << iit << flush;

     }

     cout << endl;

     i++;

   }

   cout << "done" << endl;

 }

 int main() {

   StdMap<int, int> base;

   UFE U(base);

   U.insert(1);

   U.insert(2);

   check(U.join(1,2) != -1,"Test failed.");

   U.insert(3);

   U.insert(4);

   U.insert(5);

   U.insert(6);

   U.insert(7);

   check(U.join(1,4) != -1,"Test failed.");

   check(U.join(2,4) == -1,"Test failed.");

   check(U.join(3,5) != -1,"Test failed.");

   U.insert(8,U.find(5));

   check(U.size(U.find(4)) == 3,"Test failed.");

   check(U.size(U.find(5)) == 3,"Test failed.");

   check(U.size(U.find(6)) == 1,"Test failed.");

   check(U.size(U.find(2)) == 3,"Test failed.");

   U.insert(9);

   U.insert(10,U.find(9));

   check(U.join(8,10) != -1,"Test failed.");

   check(U.size(U.find(4)) == 3,"Test failed.");

   check(U.size(U.find(9)) == 5,"Test failed.");

   check(U.size(U.find(8)) == 5,"Test failed.");

   U.erase(9);

   U.erase(1);

   check(U.size(U.find(10)) == 4,"Test failed.");

   check(U.size(U.find(2)) == 2,"Test failed.");

   U.erase(6);

   U.split(U.find(8));

   check(U.size(U.find(4)) == 2,"Test failed.");

   check(U.size(U.find(3)) == 1,"Test failed.");

   check(U.size(U.find(2)) == 2,"Test failed.");

   check(U.join(3,4) != -1,"Test failed.");

   check(U.join(2,4) == -1,"Test failed.");

   check(U.size(U.find(4)) == 3,"Test failed.");

   check(U.size(U.find(3)) == 3,"Test failed.");

   check(U.size(U.find(2)) == 3,"Test failed.");

   U.eraseClass(U.find(4));

   U.eraseClass(U.find(7));

   return 0;

 }