/* -*- C++ -*-

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

 *

 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Combinatorial Optimization Research Group, 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);

//   print(U);

  cout << "Insert 1..." << endl;

  U.insert(1);

//   print(U);

  cout << "Insert 2..." << endl;

  U.insert(2);

//   print(U);

  cout << "Join 1 and 2..." << endl;

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

//   print(U);

  cout << "Insert 3, 4, 5, 6, 7..." << endl;

  U.insert(3);

  U.insert(4);

  U.insert(5);

  U.insert(6);

  U.insert(7);

//   print (U);

  cout << "Join 1 - 4, 2 - 4 and 3 - 5 ..." << endl;

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

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

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

//   print(U);

  cout << "Insert 8 to the component of 5 ..." << endl;

  U.insert(8,5);

//   print(U);

  cout << "Size of the class of 4: " << U.size(4) << endl;

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

  cout << "Size of the class of 5: " << U.size(5) << endl;

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

  cout << "Size of the class of 6: " << U.size(6) << endl;

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

  cout << "Size of the class of 2: " << U.size(2) << endl;

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

  cout << "Insert 9 ..." << endl;

  U.insert(9);

//   print(U);

  cout << "Insert 10 to the component of 9 ..." << endl;

  U.insert(10,9);

//   print(U);

  cout << "Join 8 and 10..." << endl;

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

//   print(U);

  cout << "Move 9 to the class of 4 ..." << endl;

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

//   print(U);

  cout << "Move 9 to the class of 2 ..." << endl;

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

//   print(U);

  cout << "Size of the class of 4: " << U.size(4) << endl;

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

  cout << "Size of the class of 9: " << U.size(9) << endl;

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

  cout << "Move 5 to the class of 6 ..." << endl;

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

//   print(U);

  cout << "Size of the class of 5: " << U.size(5) << endl;

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

  cout << "Size of the class of 8: " << U.size(8) << endl;

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

  cout << "Move 7 to the class of 10 ..." << endl;

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

//   print(U);

  cout << "Size of the class of 7: " << U.size(7) << endl;

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

  cout <<"Erase 9... " << endl;

  U.erase(9);

//   print(U);

  cout <<"Erase 1... " << endl;

  U.erase(1);

//   print(U);

  cout << "Size of the class of 4: " << U.size(4) << endl;

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

  cout << "Size of the class of 2: " << U.size(2) << endl;

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

  cout <<"Erase 1... " << endl;

  U.erase(1);

//   print(U);

  cout <<"Erase 6... " << endl;

  U.erase(6);

//   print(U);

  cout << "Split the class of 8... " << endl;

  U.split(8);

//   print(U);

  cout << "Size of the class of 4: " << U.size(4) << endl;

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

  cout << "Size of the class of 3: " << U.size(3) << endl;

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

  cout << "Size of the class of 2: " << U.size(2) << endl;

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

  cout << "Join 3 - 4 and 2 - 4 ..." << endl;

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

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

//   print(U);

  cout << "Size of the class of 4: " << U.size(4) << endl;

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

  cout << "Size of the class of 3: " << U.size(3) << endl;

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

  cout << "Size of the class of 2: " << U.size(2) << endl;

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

  cout << "Calling makeRep(4)..." << endl;

  U.makeRep(4);

//   print(U);

  cout << "Calling makeRep(3)..." << endl;

  U.makeRep(3);

//   print(U);

  cout << "Calling makeRep(2)..." << endl;

  U.makeRep(2);

//   print(U);

  cout << "Size of the class of 4: " << U.size(4) << endl;

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

  cout << "Size of the class of 3: " << U.size(3) << endl;

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

  cout << "Size of the class of 2: " << U.size(2) << endl;

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

  cout << "eraseClass 4 ..." << endl;

  U.eraseClass(4);

//   print(U);

  cout << "eraseClass 7 ..." << endl;

  U.eraseClass(7);

//   print(U);

  cout << "done." << endl;

}