COIN-OR::LEMON - Graph Library

source: lemon-0.x/src/test/mincostflows_test.cc @ 630:9ea585de06ea

Last change on this file since 630:9ea585de06ea was 630:9ea585de06ea, checked in by athos, 17 years ago

I modified mincostflows_test.cc a little.

File size: 2.4 KB
Line 
1#include <iostream>
2#include "test_tools.h"
3#include <hugo/list_graph.h>
4#include <hugo/mincostflows.h>
5//#include <path.h>
6//#include <maps.h>
7
8using namespace std;
9using namespace hugo;
10
11
12
13bool passed = true;
14/*
15void check(bool rc, char *msg="") {
16  passed = passed && rc;
17  if(!rc) {
18    std::cerr << "Test failed! ("<< msg << ")" << std::endl; \
19 
20
21  }
22}
23*/
24
25
26int main()
27{
28
29  typedef ListGraph::Node Node;
30  typedef ListGraph::Edge Edge;
31
32  ListGraph graph;
33
34  //Ahuja könyv példája
35
36  Node s=graph.addNode();
37  Node v1=graph.addNode(); 
38  Node v2=graph.addNode();
39  Node v3=graph.addNode();
40  Node v4=graph.addNode();
41  Node v5=graph.addNode();
42  Node t=graph.addNode();
43
44  Edge s_v1=graph.addEdge(s, v1);
45  Edge v1_v2=graph.addEdge(v1, v2);
46  Edge s_v3=graph.addEdge(s, v3);
47  Edge v2_v4=graph.addEdge(v2, v4);
48  Edge v2_v5=graph.addEdge(v2, v5);
49  Edge v3_v5=graph.addEdge(v3, v5);
50  Edge v4_t=graph.addEdge(v4, t);
51  Edge v5_t=graph.addEdge(v5, t);
52 
53
54  ListGraph::EdgeMap<int> length(graph);
55
56  length.set(s_v1, 6);
57  length.set(v1_v2, 4);
58  length.set(s_v3, 10);
59  length.set(v2_v4, 5);
60  length.set(v2_v5, 1);
61  length.set(v3_v5, 4);
62  length.set(v4_t, 8);
63  length.set(v5_t, 8);
64
65  ListGraph::EdgeMap<int> capacity(graph);
66
67  capacity.set(s_v1, 2);
68  capacity.set(v1_v2, 2);
69  capacity.set(s_v3, 1);
70  capacity.set(v2_v4, 1);
71  capacity.set(v2_v5, 1);
72  capacity.set(v3_v5, 1);
73  capacity.set(v4_t, 1);
74  capacity.set(v5_t, 2);
75
76  //  ConstMap<Edge, int> const1map(1);
77  std::cout << "Mincostflows algorithm test..." << std::endl;
78
79  MinCostFlows< ListGraph, ListGraph::EdgeMap<int>, ListGraph::EdgeMap<int> >
80    surb_test(graph, length, capacity);
81
82  int k=1;
83
84  check(  surb_test.run(s,t,k) == 1 && surb_test.totalLength() == 19,"One path, total length should be 19");
85
86  check(surb_test.checkComplementarySlackness(), "Is the primal-dual solution pair really optimal?");
87 
88  k=2;
89 
90  check(  surb_test.run(s,t,k) == 2 && surb_test.totalLength() == 41,"Two paths, total length should be 41");
91
92  check(surb_test.checkComplementarySlackness(), "Is the primal-dual solution pair really optimal?");
93 
94 
95  k=4;
96
97  check(  surb_test.run(s,t,k) == 3 && surb_test.totalLength() == 64,"Three paths, total length should be 64");
98
99  check(surb_test.checkComplementarySlackness(), "Is the primal-dual solution pair really optimal?");
100
101
102  cout << (passed ? "All tests passed." : "Some of the tests failed!!!")
103       << endl;
104
105  return passed ? 0 : 1;
106
107}
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