lemon-0.x: test/unionfind_test.cc@054566ac0934

     1 /* -*- C++ -*-

     2  *

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

     4  *

     5  * Copyright (C) 2003-2008

     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

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

     8  *

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

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

    11  * precise terms see the accompanying LICENSE file.

    12  *

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

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

    15  * purpose.

    16  *

    17  */

    19 #include <iostream>

    21 #include <lemon/maps.h>

    22 #include <lemon/unionfind.h>

    23 #include "test_tools.h"

    25 using namespace lemon;

    26 using namespace std;

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

    30 void print(UFE const &ufe) {

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

    32   int i = 1;

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

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

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

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

    37     }

    38     cout << endl;

    39     i++;

    40   }

    41   cout << "done" << endl;

    42 }

    45 int main() {

    46   StdMap<int, int> base;

    47   UFE U(base);

    49   U.insert(1);

    50   U.insert(2);

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

    54   U.insert(3);

    55   U.insert(4);

    56   U.insert(5);

    57   U.insert(6);

    58   U.insert(7);

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

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

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

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

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

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

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

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

    75   U.insert(9);

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

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

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

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

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

    87   U.erase(9);

    88   U.erase(1);

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

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

    93   U.erase(6);

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

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

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

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

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

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

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

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

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

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

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

   113   return 0;

   114 }

author	kpeter
	Thu, 28 Feb 2008 02:54:27 +0000
changeset 2581	054566ac0934
parent 2505	1bb471764ab8
permissions	-rw-r--r--