/* -*- C++ -*-

  * test/unionfind_test.cc - Part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2005 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;

 template <typename T>

 class BaseMap : public StdMap<int,T> {};

 typedef UnionFindEnum<int, BaseMap> UFE;

 void print(UFE const &ufe) {

   UFE::ClassIt cit;

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

   int i = 1;

   for (ufe.first(cit); ufe.valid(cit); ufe.next(cit)) {

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

     UFE::ItemIt iit;

     for (ufe.first(iit, cit); ufe.valid(iit); ufe.next(iit)) {

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

     }

     cout << endl;

     i++;

   }

   cout << "done" << endl;

 }

 int main() {

   UFE::MapType base;

   UFE U(base);

   U.insert(1);

   U.insert(2);

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

   U.insert(3);

   U.insert(4);

   U.insert(5);

   U.insert(6);

   U.insert(7);

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

   check(!U.join(2,4),"Test failed.");

   check(U.join(3,5),"Test failed.");

   U.insert(8,5);

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

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

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

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

   U.insert(9);

   U.insert(10,9);

   check(U.join(8,10),"Test failed.");

   check(U.move(9,4),"Test failed.");

   check(!U.move(9,2),"Test failed.");

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

   check(U.size(9) == 4,"Test failed.");

   check(U.move(5,6),"Test failed.");

   check(U.size(5) == 2,"Test failed.");

   check(U.size(8) == 3,"Test failed.");

   check(U.move(7,10),"Test failed.");

   check(U.size(7) == 4,"Test failed.");

   U.erase(9);

   U.erase(1);

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

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

   U.erase(1);

   U.erase(6);

   U.split(8);

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

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

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

   check(U.join(3,4),"Test failed.");

   check(!U.join(2,4),"Test failed.");

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

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

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

   U.makeRep(4);

   U.makeRep(3);

   U.makeRep(2);

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

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

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

   U.eraseClass(4);

   U.eraseClass(7);

 }