COIN-OR::LEMON - Graph Library

source: lemon-0.x/src/test/unionfind_test.cc @ 1164:80bb73097736

Last change on this file since 1164:80bb73097736 was 1164:80bb73097736, checked in by Alpar Juttner, 15 years ago

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1/* -*- C++ -*-
2 * src/test/unionfind_test.cc - Part of LEMON, a generic C++ optimization library
3 *
4 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
5 * (Egervary Combinatorial Optimization Research Group, EGRES).
6 *
7 * Permission to use, modify and distribute this software is granted
8 * provided that this copyright notice appears in all copies. For
9 * precise terms see the accompanying LICENSE file.
10 *
11 * This software is provided "AS IS" with no warranty of any kind,
12 * express or implied, and with no claim as to its suitability for any
13 * purpose.
14 *
15 */
16
17#include <iostream>
18
19#include <lemon/maps.h>
20#include <lemon/unionfind.h>
21#include "test_tools.h"
22
23using namespace lemon;
24using namespace std;
25
26template <typename T>
27class BaseMap : public StdMap<int,T> {};
28
29typedef UnionFindEnum<int, BaseMap> UFE;
30
31void print(UFE const &ufe) {
32  UFE::ClassIt cit;
33  cout << "Print the classes of the structure:" << endl;
34  int i = 1;
35  for (ufe.first(cit); ufe.valid(cit); ufe.next(cit)) {
36    cout << "  " << i << " (" << cit << "):" << flush;
37    UFE::ItemIt iit;
38    for (ufe.first(iit, cit); ufe.valid(iit); ufe.next(iit)) {
39      cout << " " << iit << flush;
40    }
41    cout << endl;
42    i++;
43  }
44  cout << "done" << endl;
45}
46
47
48int main() {
49  UFE::MapType base;
50  UFE U(base);
51
52//   print(U);
53
54  cout << "Insert 1..." << endl;
55  U.insert(1);
56//   print(U);
57 
58  cout << "Insert 2..." << endl;
59  U.insert(2);
60//   print(U);
61 
62  cout << "Join 1 and 2..." << endl;
63  check(U.join(1,2),"Test failed.");
64//   print(U);
65
66  cout << "Insert 3, 4, 5, 6, 7..." << endl;
67  U.insert(3);
68  U.insert(4);
69  U.insert(5);
70  U.insert(6);
71  U.insert(7);
72//   print (U);
73
74  cout << "Join 1 - 4, 2 - 4 and 3 - 5 ..." << endl;
75  check(U.join(1,4),"Test failed.");
76  check(!U.join(2,4),"Test failed.");
77  check(U.join(3,5),"Test failed.");
78//   print(U);
79
80  cout << "Insert 8 to the component of 5 ..." << endl;
81  U.insert(8,5);
82//   print(U);
83
84  cout << "Size of the class of 4: " << U.size(4) << endl;
85  check(U.size(4) == 3,"Test failed.");
86  cout << "Size of the class of 5: " << U.size(5) << endl;
87  check(U.size(5) == 3,"Test failed.");
88  cout << "Size of the class of 6: " << U.size(6) << endl;
89  check(U.size(6) == 1,"Test failed.");
90  cout << "Size of the class of 2: " << U.size(2) << endl;
91  check(U.size(2) == 3,"Test failed.");
92
93  cout << "Insert 9 ..." << endl;
94  U.insert(9);
95//   print(U);
96  cout << "Insert 10 to the component of 9 ..." << endl;
97  U.insert(10,9);
98//   print(U);
99
100  cout << "Join 8 and 10..." << endl;
101  check(U.join(8,10),"Test failed.");
102//   print(U);
103
104  cout << "Move 9 to the class of 4 ..." << endl;
105  check(U.move(9,4),"Test failed.");
106//   print(U);
107
108  cout << "Move 9 to the class of 2 ..." << endl;
109  check(!U.move(9,2),"Test failed.");
110//   print(U);
111
112  cout << "Size of the class of 4: " << U.size(4) << endl;
113  check(U.size(4) == 4,"Test failed.");
114  cout << "Size of the class of 9: " << U.size(9) << endl;
115  check(U.size(9) == 4,"Test failed.");
116 
117  cout << "Move 5 to the class of 6 ..." << endl;
118  check(U.move(5,6),"Test failed.");
119//   print(U);
120
121  cout << "Size of the class of 5: " << U.size(5) << endl;
122  check(U.size(5) == 2,"Test failed.");
123  cout << "Size of the class of 8: " << U.size(8) << endl;
124  check(U.size(8) == 3,"Test failed.");
125
126  cout << "Move 7 to the class of 10 ..." << endl;
127  check(U.move(7,10),"Test failed.");
128//   print(U);
129
130  cout << "Size of the class of 7: " << U.size(7) << endl;
131  check(U.size(7) == 4,"Test failed.");
132
133  cout <<"Erase 9... " << endl;
134  U.erase(9);
135//   print(U);
136
137  cout <<"Erase 1... " << endl;
138  U.erase(1);
139//   print(U);
140
141  cout << "Size of the class of 4: " << U.size(4) << endl;
142  check(U.size(4) == 2,"Test failed.");
143  cout << "Size of the class of 2: " << U.size(2) << endl;
144  check(U.size(2) == 2,"Test failed.");
145
146
147  cout <<"Erase 1... " << endl;
148  U.erase(1);
149//   print(U);
150
151  cout <<"Erase 6... " << endl;
152  U.erase(6);
153//   print(U);
154
155  cout << "Split the class of 8... " << endl;
156  U.split(8);
157//   print(U);
158
159
160  cout << "Size of the class of 4: " << U.size(4) << endl;
161  check(U.size(4) == 2,"Test failed.");
162  cout << "Size of the class of 3: " << U.size(3) << endl;
163  check(U.size(3) == 1,"Test failed.");
164  cout << "Size of the class of 2: " << U.size(2) << endl;
165  check(U.size(2) == 2,"Test failed.");
166
167
168  cout << "Join 3 - 4 and 2 - 4 ..." << endl;
169  check(U.join(3,4),"Test failed.");
170  check(!U.join(2,4),"Test failed.");
171//   print(U);
172
173
174  cout << "Size of the class of 4: " << U.size(4) << endl;
175  check(U.size(4) == 3,"Test failed.");
176  cout << "Size of the class of 3: " << U.size(3) << endl;
177  check(U.size(3) == 3,"Test failed.");
178  cout << "Size of the class of 2: " << U.size(2) << endl;
179  check(U.size(2) == 3,"Test failed.");
180
181  cout << "Calling makeRep(4)..." << endl;
182  U.makeRep(4);
183//   print(U);
184  cout << "Calling makeRep(3)..." << endl;
185  U.makeRep(3);
186//   print(U);
187  cout << "Calling makeRep(2)..." << endl;
188  U.makeRep(2);
189//   print(U);
190
191  cout << "Size of the class of 4: " << U.size(4) << endl;
192  check(U.size(4) == 3,"Test failed.");
193  cout << "Size of the class of 3: " << U.size(3) << endl;
194  check(U.size(3) == 3,"Test failed.");
195  cout << "Size of the class of 2: " << U.size(2) << endl;
196  check(U.size(2) == 3,"Test failed.");
197
198
199  cout << "eraseClass 4 ..." << endl;
200  U.eraseClass(4);
201//   print(U);
202
203  cout << "eraseClass 7 ..." << endl;
204  U.eraseClass(7);
205//   print(U);
206
207  cout << "done." << endl;
208}
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