1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
---|
2 | * |
---|
3 | * This file is a part of LEMON, a generic C++ optimization library. |
---|
4 | * |
---|
5 | * Copyright (C) 2003-2011 |
---|
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 | */ |
---|
18 | |
---|
19 | #include <iostream> |
---|
20 | #include <fstream> |
---|
21 | #include <string> |
---|
22 | #include <vector> |
---|
23 | |
---|
24 | #include <lemon/concept_check.h> |
---|
25 | #include <lemon/concepts/heap.h> |
---|
26 | |
---|
27 | #include <lemon/smart_graph.h> |
---|
28 | |
---|
29 | #include <lemon/lgf_reader.h> |
---|
30 | #include <lemon/dijkstra.h> |
---|
31 | #include <lemon/maps.h> |
---|
32 | |
---|
33 | #include <lemon/bin_heap.h> |
---|
34 | #include <lemon/fib_heap.h> |
---|
35 | #include <lemon/radix_heap.h> |
---|
36 | #include <lemon/bucket_heap.h> |
---|
37 | |
---|
38 | #include "test_tools.h" |
---|
39 | |
---|
40 | using namespace lemon; |
---|
41 | using namespace lemon::concepts; |
---|
42 | |
---|
43 | typedef ListDigraph Digraph; |
---|
44 | DIGRAPH_TYPEDEFS(Digraph); |
---|
45 | |
---|
46 | char test_lgf[] = |
---|
47 | "@nodes\n" |
---|
48 | "label\n" |
---|
49 | "0\n" |
---|
50 | "1\n" |
---|
51 | "2\n" |
---|
52 | "3\n" |
---|
53 | "4\n" |
---|
54 | "5\n" |
---|
55 | "6\n" |
---|
56 | "7\n" |
---|
57 | "8\n" |
---|
58 | "9\n" |
---|
59 | "@arcs\n" |
---|
60 | " label capacity\n" |
---|
61 | "0 5 0 94\n" |
---|
62 | "3 9 1 11\n" |
---|
63 | "8 7 2 83\n" |
---|
64 | "1 2 3 94\n" |
---|
65 | "5 7 4 35\n" |
---|
66 | "7 4 5 84\n" |
---|
67 | "9 5 6 38\n" |
---|
68 | "0 4 7 96\n" |
---|
69 | "6 7 8 6\n" |
---|
70 | "3 1 9 27\n" |
---|
71 | "5 2 10 77\n" |
---|
72 | "5 6 11 69\n" |
---|
73 | "6 5 12 41\n" |
---|
74 | "4 6 13 70\n" |
---|
75 | "3 2 14 45\n" |
---|
76 | "7 9 15 93\n" |
---|
77 | "5 9 16 50\n" |
---|
78 | "9 0 17 94\n" |
---|
79 | "9 6 18 67\n" |
---|
80 | "0 9 19 86\n" |
---|
81 | "@attributes\n" |
---|
82 | "source 3\n"; |
---|
83 | |
---|
84 | int test_seq[] = { 2, 28, 19, 27, 33, 25, 13, 41, 10, 26, 1, 9, 4, 34}; |
---|
85 | int test_inc[] = {20, 28, 34, 16, 0, 46, 44, 0, 42, 32, 14, 8, 6, 37}; |
---|
86 | |
---|
87 | int test_len = sizeof(test_seq) / sizeof(test_seq[0]); |
---|
88 | |
---|
89 | template <typename Heap> |
---|
90 | void heapSortTest() { |
---|
91 | RangeMap<int> map(test_len, -1); |
---|
92 | |
---|
93 | Heap heap(map); |
---|
94 | |
---|
95 | std::vector<int> v(test_len); |
---|
96 | |
---|
97 | for (int i = 0; i < test_len; ++i) { |
---|
98 | v[i] = test_seq[i]; |
---|
99 | heap.push(i, v[i]); |
---|
100 | } |
---|
101 | std::sort(v.begin(), v.end()); |
---|
102 | for (int i = 0; i < test_len; ++i) { |
---|
103 | check(v[i] == heap.prio() ,"Wrong order in heap sort."); |
---|
104 | heap.pop(); |
---|
105 | } |
---|
106 | } |
---|
107 | |
---|
108 | template <typename Heap> |
---|
109 | void heapIncreaseTest() { |
---|
110 | RangeMap<int> map(test_len, -1); |
---|
111 | |
---|
112 | Heap heap(map); |
---|
113 | |
---|
114 | std::vector<int> v(test_len); |
---|
115 | |
---|
116 | for (int i = 0; i < test_len; ++i) { |
---|
117 | v[i] = test_seq[i]; |
---|
118 | heap.push(i, v[i]); |
---|
119 | } |
---|
120 | for (int i = 0; i < test_len; ++i) { |
---|
121 | v[i] += test_inc[i]; |
---|
122 | heap.increase(i, v[i]); |
---|
123 | } |
---|
124 | std::sort(v.begin(), v.end()); |
---|
125 | for (int i = 0; i < test_len; ++i) { |
---|
126 | check(v[i] == heap.prio() ,"Wrong order in heap increase test."); |
---|
127 | heap.pop(); |
---|
128 | } |
---|
129 | } |
---|
130 | |
---|
131 | |
---|
132 | |
---|
133 | template <typename Heap> |
---|
134 | void dijkstraHeapTest(const Digraph& digraph, const IntArcMap& length, |
---|
135 | Node source) { |
---|
136 | |
---|
137 | typename Dijkstra<Digraph, IntArcMap>::template SetStandardHeap<Heap>:: |
---|
138 | Create dijkstra(digraph, length); |
---|
139 | |
---|
140 | dijkstra.run(source); |
---|
141 | |
---|
142 | for(ArcIt a(digraph); a != INVALID; ++a) { |
---|
143 | Node s = digraph.source(a); |
---|
144 | Node t = digraph.target(a); |
---|
145 | if (dijkstra.reached(s)) { |
---|
146 | check( dijkstra.dist(t) - dijkstra.dist(s) <= length[a], |
---|
147 | "Error in a shortest path tree!"); |
---|
148 | } |
---|
149 | } |
---|
150 | |
---|
151 | for(NodeIt n(digraph); n != INVALID; ++n) { |
---|
152 | if ( dijkstra.reached(n) && dijkstra.predArc(n) != INVALID ) { |
---|
153 | Arc a = dijkstra.predArc(n); |
---|
154 | Node s = digraph.source(a); |
---|
155 | check( dijkstra.dist(n) - dijkstra.dist(s) == length[a], |
---|
156 | "Error in a shortest path tree!"); |
---|
157 | } |
---|
158 | } |
---|
159 | |
---|
160 | } |
---|
161 | |
---|
162 | int main() { |
---|
163 | |
---|
164 | typedef int Item; |
---|
165 | typedef int Prio; |
---|
166 | typedef RangeMap<int> ItemIntMap; |
---|
167 | |
---|
168 | Digraph digraph; |
---|
169 | IntArcMap length(digraph); |
---|
170 | Node source; |
---|
171 | |
---|
172 | std::istringstream input(test_lgf); |
---|
173 | digraphReader(digraph, input). |
---|
174 | arcMap("capacity", length). |
---|
175 | node("source", source). |
---|
176 | run(); |
---|
177 | |
---|
178 | { |
---|
179 | typedef BinHeap<Prio, ItemIntMap> IntHeap; |
---|
180 | checkConcept<Heap<Prio, ItemIntMap>, IntHeap>(); |
---|
181 | heapSortTest<IntHeap>(); |
---|
182 | heapIncreaseTest<IntHeap>(); |
---|
183 | |
---|
184 | typedef BinHeap<Prio, IntNodeMap > NodeHeap; |
---|
185 | checkConcept<Heap<Prio, IntNodeMap >, NodeHeap>(); |
---|
186 | dijkstraHeapTest<NodeHeap>(digraph, length, source); |
---|
187 | } |
---|
188 | |
---|
189 | { |
---|
190 | typedef FibHeap<Prio, ItemIntMap> IntHeap; |
---|
191 | checkConcept<Heap<Prio, ItemIntMap>, IntHeap>(); |
---|
192 | heapSortTest<IntHeap>(); |
---|
193 | heapIncreaseTest<IntHeap>(); |
---|
194 | |
---|
195 | typedef FibHeap<Prio, IntNodeMap > NodeHeap; |
---|
196 | checkConcept<Heap<Prio, IntNodeMap >, NodeHeap>(); |
---|
197 | dijkstraHeapTest<NodeHeap>(digraph, length, source); |
---|
198 | } |
---|
199 | |
---|
200 | { |
---|
201 | typedef RadixHeap<ItemIntMap> IntHeap; |
---|
202 | checkConcept<Heap<Prio, ItemIntMap>, IntHeap>(); |
---|
203 | heapSortTest<IntHeap>(); |
---|
204 | heapIncreaseTest<IntHeap>(); |
---|
205 | |
---|
206 | typedef RadixHeap<IntNodeMap > NodeHeap; |
---|
207 | checkConcept<Heap<Prio, IntNodeMap >, NodeHeap>(); |
---|
208 | dijkstraHeapTest<NodeHeap>(digraph, length, source); |
---|
209 | } |
---|
210 | |
---|
211 | { |
---|
212 | typedef BucketHeap<ItemIntMap> IntHeap; |
---|
213 | checkConcept<Heap<Prio, ItemIntMap>, IntHeap>(); |
---|
214 | heapSortTest<IntHeap>(); |
---|
215 | heapIncreaseTest<IntHeap>(); |
---|
216 | |
---|
217 | typedef BucketHeap<IntNodeMap > NodeHeap; |
---|
218 | checkConcept<Heap<Prio, IntNodeMap >, NodeHeap>(); |
---|
219 | dijkstraHeapTest<NodeHeap>(digraph, length, source); |
---|
220 | } |
---|
221 | |
---|
222 | |
---|
223 | return 0; |
---|
224 | } |
---|