1 | /* -*- C++ -*- |
---|
2 | * |
---|
3 | * This file is a part of LEMON, a generic C++ optimization library |
---|
4 | * |
---|
5 | * Copyright (C) 2003-2006 |
---|
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 <lemon/time_measure.h> |
---|
20 | #include <lemon/smart_graph.h> |
---|
21 | #include <lemon/graph_utils.h> |
---|
22 | #include <lemon/maps.h> |
---|
23 | #include <lemon/radix_sort.h> |
---|
24 | |
---|
25 | #include "test_tools.h" |
---|
26 | |
---|
27 | |
---|
28 | #include <vector> |
---|
29 | #include <algorithm> |
---|
30 | #include <cmath> |
---|
31 | |
---|
32 | using namespace std; |
---|
33 | using namespace lemon; |
---|
34 | |
---|
35 | void checkRadixSort() { |
---|
36 | { |
---|
37 | int n = 10000; |
---|
38 | vector<int> data1(n), data2(n); |
---|
39 | for (int i = 0; i < n; ++i) { |
---|
40 | data1[i] = data2[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500; |
---|
41 | } |
---|
42 | radixSort(data1.begin(), data1.end()); |
---|
43 | sort(data2.begin(), data2.end()); |
---|
44 | for (int i = 0; i < n; ++i) { |
---|
45 | check(data1[i] == data2[i], "Test failed"); |
---|
46 | } |
---|
47 | } { |
---|
48 | int n = 10000; |
---|
49 | vector<unsigned char> data1(n), data2(n); |
---|
50 | for (int i = 0; i < n; ++i) { |
---|
51 | data1[i] = data2[i] = (int)(200 * (rand() / (RAND_MAX + 1.0))); |
---|
52 | } |
---|
53 | radixSort(data1.begin(), data1.end()); |
---|
54 | sort(data2.begin(), data2.end()); |
---|
55 | for (int i = 0; i < n; ++i) { |
---|
56 | check(data1[i] == data2[i], "Test failed"); |
---|
57 | } |
---|
58 | } |
---|
59 | } |
---|
60 | |
---|
61 | |
---|
62 | void checkCounterSort() { |
---|
63 | { |
---|
64 | int n = 10000; |
---|
65 | vector<int> data1(n), data2(n); |
---|
66 | for (int i = 0; i < n; ++i) { |
---|
67 | data1[i] = data2[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500; |
---|
68 | } |
---|
69 | counterSort(data1.begin(), data1.end()); |
---|
70 | sort(data2.begin(), data2.end()); |
---|
71 | for (int i = 0; i < n; ++i) { |
---|
72 | check(data1[i] == data2[i], "Test failed"); |
---|
73 | } |
---|
74 | } { |
---|
75 | int n = 10000; |
---|
76 | vector<unsigned char> data1(n), data2(n); |
---|
77 | for (int i = 0; i < n; ++i) { |
---|
78 | data1[i] = data2[i] = (int)(200 * (rand() / (RAND_MAX + 1.0))); |
---|
79 | } |
---|
80 | counterSort(data1.begin(), data1.end()); |
---|
81 | sort(data2.begin(), data2.end()); |
---|
82 | for (int i = 0; i < n; ++i) { |
---|
83 | check(data1[i] == data2[i], "Test failed"); |
---|
84 | } |
---|
85 | } |
---|
86 | } |
---|
87 | |
---|
88 | void checkSorts() { |
---|
89 | checkRadixSort(); |
---|
90 | checkCounterSort(); |
---|
91 | } |
---|
92 | |
---|
93 | void checkGraphRadixSort() { |
---|
94 | typedef SmartGraph Graph; |
---|
95 | typedef Graph::Node Node; |
---|
96 | typedef Graph::Edge Edge; |
---|
97 | |
---|
98 | const int n = 100; |
---|
99 | const int e = (int)(n * log((double)n)); |
---|
100 | |
---|
101 | Graph graph; |
---|
102 | vector<Node> nodes; |
---|
103 | |
---|
104 | for (int i = 0; i < n; ++i) { |
---|
105 | nodes.push_back(graph.addNode()); |
---|
106 | } |
---|
107 | vector<Edge> edges; |
---|
108 | for (int i = 0; i < e; ++i) { |
---|
109 | int s = (int)(n * (double)rand() / (RAND_MAX + 1.0)); |
---|
110 | int t = (int)(n * (double)rand() / (RAND_MAX + 1.0)); |
---|
111 | edges.push_back(graph.addEdge(nodes[s], nodes[t])); |
---|
112 | } |
---|
113 | |
---|
114 | radixSort(edges.begin(), edges.end(), |
---|
115 | mapFunctor(composeMap(IdMap<Graph, Node>(graph), |
---|
116 | sourceMap(graph)))); |
---|
117 | |
---|
118 | Graph::EdgeMap<bool> was(graph, false); |
---|
119 | |
---|
120 | for (int i = 0; i < (int)edges.size(); ++i) { |
---|
121 | check(!was[edges[i]], "Test failed"); |
---|
122 | was[edges[i]] = true; |
---|
123 | } |
---|
124 | |
---|
125 | for (int i = 1; i < (int)edges.size(); ++i) { |
---|
126 | check(graph.id(graph.source(edges[i - 1])) <= |
---|
127 | graph.id(graph.source(edges[i])), "Test failed"); |
---|
128 | } |
---|
129 | |
---|
130 | } |
---|
131 | |
---|
132 | void checkGraphCounterSort() { |
---|
133 | typedef SmartGraph Graph; |
---|
134 | typedef Graph::Node Node; |
---|
135 | typedef Graph::Edge Edge; |
---|
136 | |
---|
137 | const int n = 100; |
---|
138 | const int e = (int)(n * log((double)n)); |
---|
139 | |
---|
140 | Graph graph; |
---|
141 | vector<Node> nodes; |
---|
142 | |
---|
143 | for (int i = 0; i < n; ++i) { |
---|
144 | nodes.push_back(graph.addNode()); |
---|
145 | } |
---|
146 | vector<Edge> edges; |
---|
147 | for (int i = 0; i < e; ++i) { |
---|
148 | int s = (int)(n * (double)rand() / (RAND_MAX + 1.0)); |
---|
149 | int t = (int)(n * (double)rand() / (RAND_MAX + 1.0)); |
---|
150 | edges.push_back(graph.addEdge(nodes[s], nodes[t])); |
---|
151 | } |
---|
152 | |
---|
153 | counterSort(edges.begin(), edges.end(), |
---|
154 | mapFunctor(composeMap(IdMap<Graph, Node>(graph), |
---|
155 | sourceMap(graph)))); |
---|
156 | |
---|
157 | counterSort(edges.begin(), edges.end(), |
---|
158 | mapFunctor(composeMap(IdMap<Graph, Node>(graph), |
---|
159 | targetMap(graph)))); |
---|
160 | |
---|
161 | Graph::EdgeMap<bool> was(graph, false); |
---|
162 | |
---|
163 | for (int i = 0; i < (int)edges.size(); ++i) { |
---|
164 | check(!was[edges[i]], "Test failed"); |
---|
165 | was[edges[i]] = true; |
---|
166 | } |
---|
167 | |
---|
168 | for (int i = 1; i < (int)edges.size(); ++i) { |
---|
169 | check(graph.id(graph.target(edges[i - 1])) < |
---|
170 | graph.id(graph.target(edges[i])) || |
---|
171 | (graph.id(graph.target(edges[i - 1])) == |
---|
172 | graph.id(graph.target(edges[i])) && |
---|
173 | graph.id(graph.source(edges[i - 1])) <= |
---|
174 | graph.id(graph.source(edges[i]))), "Test failed"); |
---|
175 | } |
---|
176 | |
---|
177 | } |
---|
178 | |
---|
179 | void checkGraphSorts() { |
---|
180 | checkGraphRadixSort(); |
---|
181 | checkGraphCounterSort(); |
---|
182 | } |
---|
183 | |
---|
184 | int main() { |
---|
185 | checkSorts(); |
---|
186 | checkGraphSorts(); |
---|
187 | return 0; |
---|
188 | } |
---|