1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2006 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #ifndef LEMON_FULL_GRAPH_H |
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20 | #define LEMON_FULL_GRAPH_H |
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21 | |
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22 | #include <cmath> |
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23 | |
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24 | #include <lemon/bits/base_extender.h> |
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25 | #include <lemon/bits/graph_extender.h> |
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26 | |
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27 | #include <lemon/bits/invalid.h> |
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28 | #include <lemon/bits/utility.h> |
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29 | |
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30 | |
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31 | ///\ingroup graphs |
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32 | ///\file |
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33 | ///\brief FullGraph and FullUGraph classes. |
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34 | |
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35 | |
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36 | namespace lemon { |
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37 | |
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38 | /// \brief Base of the FullGrpah. |
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39 | /// |
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40 | /// Base of the FullGrpah. |
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41 | class FullGraphBase { |
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42 | int _nodeNum; |
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43 | int _edgeNum; |
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44 | public: |
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45 | |
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46 | typedef FullGraphBase Graph; |
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47 | |
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48 | class Node; |
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49 | class Edge; |
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50 | |
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51 | public: |
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52 | |
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53 | FullGraphBase() {} |
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54 | |
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55 | |
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56 | ///Creates a full graph with \c n nodes. |
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57 | void construct(int n) { _nodeNum = n; _edgeNum = n * n; } |
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58 | |
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59 | typedef True NodeNumTag; |
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60 | typedef True EdgeNumTag; |
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61 | |
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62 | /// \brief Returns the node with the given index. |
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63 | /// |
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64 | /// Returns the node with the given index. Because it is a |
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65 | /// static size graph the node's of the graph can be indiced |
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66 | /// by the range from 0 to \e nodeNum()-1 and the index of |
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67 | /// the node can accessed by the \e index() member. |
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68 | Node operator()(int index) const { return Node(index); } |
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69 | |
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70 | /// \brief Returns the index of the node. |
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71 | /// |
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72 | /// Returns the index of the node. Because it is a |
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73 | /// static size graph the node's of the graph can be indiced |
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74 | /// by the range from 0 to \e nodeNum()-1 and the index of |
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75 | /// the node can accessed by the \e index() member. |
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76 | int index(const Node& node) const { return node.id; } |
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77 | |
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78 | ///Number of nodes. |
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79 | int nodeNum() const { return _nodeNum; } |
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80 | ///Number of edges. |
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81 | int edgeNum() const { return _edgeNum; } |
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82 | |
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83 | /// Maximum node ID. |
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84 | |
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85 | /// Maximum node ID. |
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86 | ///\sa id(Node) |
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87 | int maxNodeId() const { return _nodeNum-1; } |
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88 | /// Maximum edge ID. |
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89 | |
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90 | /// Maximum edge ID. |
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91 | ///\sa id(Edge) |
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92 | int maxEdgeId() const { return _edgeNum-1; } |
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93 | |
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94 | Node source(Edge e) const { return e.id % _nodeNum; } |
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95 | Node target(Edge e) const { return e.id / _nodeNum; } |
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96 | |
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97 | |
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98 | /// Node ID. |
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99 | |
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100 | /// The ID of a valid Node is a nonnegative integer not greater than |
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101 | /// \ref maxNodeId(). The range of the ID's is not surely continuous |
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102 | /// and the greatest node ID can be actually less then \ref maxNodeId(). |
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103 | /// |
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104 | /// The ID of the \ref INVALID node is -1. |
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105 | ///\return The ID of the node \c v. |
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106 | |
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107 | static int id(Node v) { return v.id; } |
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108 | /// Edge ID. |
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109 | |
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110 | /// The ID of a valid Edge is a nonnegative integer not greater than |
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111 | /// \ref maxEdgeId(). The range of the ID's is not surely continuous |
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112 | /// and the greatest edge ID can be actually less then \ref maxEdgeId(). |
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113 | /// |
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114 | /// The ID of the \ref INVALID edge is -1. |
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115 | ///\return The ID of the edge \c e. |
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116 | static int id(Edge e) { return e.id; } |
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117 | |
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118 | static Node nodeFromId(int id) { return Node(id);} |
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119 | |
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120 | static Edge edgeFromId(int id) { return Edge(id);} |
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121 | |
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122 | typedef True FindEdgeTag; |
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123 | |
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124 | /// Finds an edge between two nodes. |
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125 | |
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126 | /// Finds an edge from node \c u to node \c v. |
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127 | /// |
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128 | /// If \c prev is \ref INVALID (this is the default value), then |
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129 | /// It finds the first edge from \c u to \c v. Otherwise it looks for |
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130 | /// the next edge from \c u to \c v after \c prev. |
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131 | /// \return The found edge or INVALID if there is no such an edge. |
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132 | Edge findEdge(Node u,Node v, Edge prev = INVALID) const { |
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133 | return prev.id == -1 ? Edge(*this, u.id, v.id) : INVALID; |
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134 | } |
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135 | |
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136 | |
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137 | class Node { |
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138 | friend class FullGraphBase; |
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139 | |
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140 | protected: |
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141 | int id; |
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142 | Node(int _id) : id(_id) {} |
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143 | public: |
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144 | Node() {} |
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145 | Node (Invalid) : id(-1) {} |
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146 | bool operator==(const Node node) const {return id == node.id;} |
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147 | bool operator!=(const Node node) const {return id != node.id;} |
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148 | bool operator<(const Node node) const {return id < node.id;} |
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149 | }; |
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150 | |
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151 | |
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152 | |
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153 | class Edge { |
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154 | friend class FullGraphBase; |
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155 | |
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156 | protected: |
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157 | int id; // _nodeNum * target + source; |
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158 | |
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159 | Edge(int _id) : id(_id) {} |
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160 | |
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161 | Edge(const FullGraphBase& _graph, int source, int target) |
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162 | : id(_graph._nodeNum * target+source) {} |
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163 | public: |
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164 | Edge() { } |
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165 | Edge (Invalid) { id = -1; } |
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166 | bool operator==(const Edge edge) const {return id == edge.id;} |
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167 | bool operator!=(const Edge edge) const {return id != edge.id;} |
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168 | bool operator<(const Edge edge) const {return id < edge.id;} |
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169 | }; |
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170 | |
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171 | void first(Node& node) const { |
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172 | node.id = _nodeNum-1; |
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173 | } |
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174 | |
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175 | static void next(Node& node) { |
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176 | --node.id; |
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177 | } |
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178 | |
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179 | void first(Edge& edge) const { |
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180 | edge.id = _edgeNum-1; |
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181 | } |
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182 | |
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183 | static void next(Edge& edge) { |
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184 | --edge.id; |
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185 | } |
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186 | |
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187 | void firstOut(Edge& edge, const Node& node) const { |
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188 | edge.id = _edgeNum + node.id - _nodeNum; |
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189 | } |
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190 | |
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191 | void nextOut(Edge& edge) const { |
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192 | edge.id -= _nodeNum; |
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193 | if (edge.id < 0) edge.id = -1; |
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194 | } |
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195 | |
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196 | void firstIn(Edge& edge, const Node& node) const { |
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197 | edge.id = node.id * _nodeNum; |
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198 | } |
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199 | |
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200 | void nextIn(Edge& edge) const { |
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201 | ++edge.id; |
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202 | if (edge.id % _nodeNum == 0) edge.id = -1; |
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203 | } |
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204 | |
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205 | }; |
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206 | |
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207 | typedef GraphExtender<FullGraphBase> ExtendedFullGraphBase; |
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208 | |
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209 | /// \ingroup graphs |
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210 | /// |
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211 | /// \brief A full graph class. |
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212 | /// |
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213 | /// This is a simple and fast directed full graph implementation. |
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214 | /// It is completely static, so you can neither add nor delete either |
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215 | /// edges or nodes. |
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216 | /// Thus it conforms to |
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217 | /// the \ref concept::StaticGraph "StaticGraph" concept |
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218 | /// \sa concept::StaticGraph. |
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219 | /// |
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220 | /// \sa FullGraphBase |
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221 | /// \sa FullUGraph |
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222 | /// |
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223 | /// \author Alpar Juttner |
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224 | class FullGraph : public ExtendedFullGraphBase { |
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225 | public: |
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226 | |
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227 | typedef ExtendedFullGraphBase Parent; |
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228 | |
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229 | /// \brief Constructor |
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230 | FullGraph() { construct(0); } |
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231 | |
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232 | /// \brief Constructor |
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233 | /// |
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234 | FullGraph(int n) { construct(n); } |
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235 | |
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236 | /// \brief Resize the graph |
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237 | /// |
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238 | /// Resize the graph. The function will fully destroy and build the graph. |
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239 | /// This cause that the maps of the graph will reallocated |
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240 | /// automatically and the previous values will be lost. |
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241 | void resize(int n) { |
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242 | Parent::getNotifier(Edge()).clear(); |
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243 | Parent::getNotifier(Node()).clear(); |
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244 | construct(n); |
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245 | Parent::getNotifier(Node()).build(); |
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246 | Parent::getNotifier(Edge()).build(); |
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247 | } |
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248 | }; |
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249 | |
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250 | |
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251 | /// \brief Base of the FullUGrpah. |
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252 | /// |
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253 | /// Base of the FullUGrpah. |
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254 | class FullUGraphBase { |
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255 | int _nodeNum; |
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256 | int _edgeNum; |
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257 | public: |
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258 | |
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259 | typedef FullUGraphBase Graph; |
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260 | |
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261 | class Node; |
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262 | class Edge; |
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263 | |
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264 | public: |
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265 | |
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266 | FullUGraphBase() {} |
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267 | |
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268 | |
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269 | ///Creates a full graph with \c n nodes. |
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270 | void construct(int n) { _nodeNum = n; _edgeNum = n * (n - 1) / 2; } |
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271 | |
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272 | /// \brief Returns the node with the given index. |
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273 | /// |
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274 | /// Returns the node with the given index. Because it is a |
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275 | /// static size graph the node's of the graph can be indiced |
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276 | /// by the range from 0 to \e nodeNum()-1 and the index of |
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277 | /// the node can accessed by the \e index() member. |
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278 | Node operator()(int index) const { return Node(index); } |
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279 | |
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280 | /// \brief Returns the index of the node. |
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281 | /// |
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282 | /// Returns the index of the node. Because it is a |
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283 | /// static size graph the node's of the graph can be indiced |
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284 | /// by the range from 0 to \e nodeNum()-1 and the index of |
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285 | /// the node can accessed by the \e index() member. |
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286 | int index(const Node& node) const { return node.id; } |
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287 | |
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288 | typedef True NodeNumTag; |
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289 | typedef True EdgeNumTag; |
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290 | |
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291 | ///Number of nodes. |
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292 | int nodeNum() const { return _nodeNum; } |
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293 | ///Number of edges. |
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294 | int edgeNum() const { return _edgeNum; } |
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295 | |
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296 | /// Maximum node ID. |
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297 | |
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298 | /// Maximum node ID. |
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299 | ///\sa id(Node) |
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300 | int maxNodeId() const { return _nodeNum-1; } |
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301 | /// Maximum edge ID. |
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302 | |
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303 | /// Maximum edge ID. |
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304 | ///\sa id(Edge) |
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305 | int maxEdgeId() const { return _edgeNum-1; } |
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306 | |
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307 | /// \brief Returns the node from its \c id. |
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308 | /// |
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309 | /// Returns the node from its \c id. If there is not node |
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310 | /// with the given id the effect of the function is undefinied. |
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311 | static Node nodeFromId(int id) { return Node(id);} |
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312 | |
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313 | /// \brief Returns the edge from its \c id. |
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314 | /// |
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315 | /// Returns the edge from its \c id. If there is not edge |
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316 | /// with the given id the effect of the function is undefinied. |
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317 | static Edge edgeFromId(int id) { return Edge(id);} |
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318 | |
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319 | Node source(Edge e) const { |
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320 | /// \todo we may do it faster |
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321 | return Node(((int)sqrt((double)(1 + 8 * e.id)) + 1) / 2); |
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322 | } |
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323 | |
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324 | Node target(Edge e) const { |
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325 | int source = ((int)sqrt((double)(1 + 8 * e.id)) + 1) / 2;; |
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326 | return Node(e.id - (source) * (source - 1) / 2); |
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327 | } |
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328 | |
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329 | |
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330 | /// \brief Node ID. |
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331 | /// |
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332 | /// The ID of a valid Node is a nonnegative integer not greater than |
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333 | /// \ref maxNodeId(). The range of the ID's is not surely continuous |
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334 | /// and the greatest node ID can be actually less then \ref maxNodeId(). |
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335 | /// |
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336 | /// The ID of the \ref INVALID node is -1. |
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337 | /// \return The ID of the node \c v. |
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338 | |
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339 | static int id(Node v) { return v.id; } |
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340 | |
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341 | /// \brief Edge ID. |
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342 | /// |
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343 | /// The ID of a valid Edge is a nonnegative integer not greater than |
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344 | /// \ref maxEdgeId(). The range of the ID's is not surely continuous |
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345 | /// and the greatest edge ID can be actually less then \ref maxEdgeId(). |
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346 | /// |
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347 | /// The ID of the \ref INVALID edge is -1. |
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348 | ///\return The ID of the edge \c e. |
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349 | static int id(Edge e) { return e.id; } |
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350 | |
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351 | /// \brief Finds an edge between two nodes. |
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352 | /// |
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353 | /// Finds an edge from node \c u to node \c v. |
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354 | /// |
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355 | /// If \c prev is \ref INVALID (this is the default value), then |
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356 | /// It finds the first edge from \c u to \c v. Otherwise it looks for |
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357 | /// the next edge from \c u to \c v after \c prev. |
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358 | /// \return The found edge or INVALID if there is no such an edge. |
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359 | Edge findEdge(Node u, Node v, Edge prev = INVALID) const { |
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360 | if (prev.id != -1 || u.id <= v.id) return Edge(-1); |
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361 | return Edge(u.id * (u.id - 1) / 2 + v.id); |
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362 | } |
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363 | |
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364 | typedef True FindEdgeTag; |
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365 | |
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366 | |
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367 | class Node { |
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368 | friend class FullUGraphBase; |
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369 | |
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370 | protected: |
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371 | int id; |
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372 | Node(int _id) { id = _id;} |
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373 | public: |
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374 | Node() {} |
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375 | Node (Invalid) { id = -1; } |
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376 | bool operator==(const Node node) const {return id == node.id;} |
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377 | bool operator!=(const Node node) const {return id != node.id;} |
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378 | bool operator<(const Node node) const {return id < node.id;} |
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379 | }; |
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380 | |
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381 | |
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382 | |
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383 | class Edge { |
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384 | friend class FullUGraphBase; |
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385 | |
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386 | protected: |
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387 | int id; // _nodeNum * target + source; |
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388 | |
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389 | Edge(int _id) : id(_id) {} |
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390 | |
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391 | public: |
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392 | Edge() { } |
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393 | Edge (Invalid) { id = -1; } |
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394 | bool operator==(const Edge edge) const {return id == edge.id;} |
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395 | bool operator!=(const Edge edge) const {return id != edge.id;} |
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396 | bool operator<(const Edge edge) const {return id < edge.id;} |
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397 | }; |
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398 | |
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399 | void first(Node& node) const { |
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400 | node.id = _nodeNum - 1; |
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401 | } |
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402 | |
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403 | static void next(Node& node) { |
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404 | --node.id; |
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405 | } |
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406 | |
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407 | void first(Edge& edge) const { |
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408 | edge.id = _edgeNum - 1; |
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409 | } |
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410 | |
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411 | static void next(Edge& edge) { |
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412 | --edge.id; |
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413 | } |
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414 | |
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415 | void firstOut(Edge& edge, const Node& node) const { |
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416 | int src = node.id; |
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417 | int trg = 0; |
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418 | edge.id = (trg < src ? src * (src - 1) / 2 + trg : -1); |
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419 | } |
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420 | |
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421 | /// \todo with specialized iterators we can make faster iterating |
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422 | void nextOut(Edge& edge) const { |
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423 | int src = source(edge).id; |
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424 | int trg = target(edge).id; |
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425 | ++trg; |
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426 | edge.id = (trg < src ? src * (src - 1) / 2 + trg : -1); |
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427 | } |
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428 | |
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429 | void firstIn(Edge& edge, const Node& node) const { |
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430 | int src = node.id + 1; |
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431 | int trg = node.id; |
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432 | edge.id = (src < _nodeNum ? src * (src - 1) / 2 + trg : -1); |
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433 | } |
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434 | |
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435 | void nextIn(Edge& edge) const { |
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436 | int src = source(edge).id; |
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437 | int trg = target(edge).id; |
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438 | ++src; |
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439 | edge.id = (src < _nodeNum ? src * (src - 1) / 2 + trg : -1); |
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440 | } |
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441 | |
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442 | }; |
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443 | |
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444 | typedef UGraphExtender<UndirGraphExtender<FullUGraphBase> > |
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445 | ExtendedFullUGraphBase; |
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446 | |
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447 | /// \ingroup graphs |
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448 | /// |
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449 | /// \brief An undirected full graph class. |
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450 | /// |
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451 | /// This is a simple and fast undirected full graph implementation. |
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452 | /// It is completely static, so you can neither add nor delete either |
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453 | /// edges or nodes. |
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454 | /// |
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455 | /// The main difference beetween the \e FullGraph and \e FullUGraph class |
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456 | /// is that this class conforms to the undirected graph concept and |
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457 | /// it does not contain the loop edges. |
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458 | /// |
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459 | /// \sa FullUGraphBase |
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460 | /// \sa FullGraph |
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461 | /// |
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462 | /// \author Balazs Dezso |
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463 | class FullUGraph : public ExtendedFullUGraphBase { |
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464 | public: |
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465 | |
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466 | typedef ExtendedFullUGraphBase Parent; |
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467 | |
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468 | /// \brief Constructor |
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469 | FullUGraph() { construct(0); } |
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470 | |
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471 | /// \brief Constructor |
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472 | FullUGraph(int n) { construct(n); } |
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473 | |
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474 | /// \brief Resize the graph |
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475 | /// |
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476 | /// Resize the graph. The function will fully destroy and build the graph. |
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477 | /// This cause that the maps of the graph will reallocated |
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478 | /// automatically and the previous values will be lost. |
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479 | void resize(int n) { |
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480 | Parent::getNotifier(Edge()).clear(); |
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481 | Parent::getNotifier(UEdge()).clear(); |
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482 | Parent::getNotifier(Node()).clear(); |
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483 | construct(n); |
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484 | Parent::getNotifier(Node()).build(); |
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485 | Parent::getNotifier(UEdge()).build(); |
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486 | Parent::getNotifier(Edge()).build(); |
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487 | } |
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488 | }; |
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489 | |
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490 | |
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491 | class FullBpUGraphBase { |
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492 | protected: |
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493 | |
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494 | int _aNodeNum; |
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495 | int _bNodeNum; |
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496 | |
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497 | int _edgeNum; |
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498 | |
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499 | public: |
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500 | |
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501 | class NodeSetError : public LogicError { |
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502 | virtual const char* exceptionName() const { |
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503 | return "lemon::FullBpUGraph::NodeSetError"; |
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504 | } |
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505 | }; |
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506 | |
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507 | class Node { |
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508 | friend class FullBpUGraphBase; |
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509 | protected: |
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510 | int id; |
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511 | |
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512 | Node(int _id) : id(_id) {} |
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513 | public: |
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514 | Node() {} |
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515 | Node(Invalid) { id = -1; } |
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516 | bool operator==(const Node i) const {return id==i.id;} |
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517 | bool operator!=(const Node i) const {return id!=i.id;} |
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518 | bool operator<(const Node i) const {return id<i.id;} |
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519 | }; |
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520 | |
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521 | class UEdge { |
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522 | friend class FullBpUGraphBase; |
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523 | protected: |
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524 | int id; |
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525 | |
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526 | UEdge(int _id) { id = _id;} |
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527 | public: |
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528 | UEdge() {} |
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529 | UEdge (Invalid) { id = -1; } |
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530 | bool operator==(const UEdge i) const {return id==i.id;} |
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531 | bool operator!=(const UEdge i) const {return id!=i.id;} |
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532 | bool operator<(const UEdge i) const {return id<i.id;} |
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533 | }; |
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534 | |
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535 | void construct(int aNodeNum, int bNodeNum) { |
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536 | _aNodeNum = aNodeNum; |
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537 | _bNodeNum = bNodeNum; |
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538 | _edgeNum = aNodeNum * bNodeNum; |
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539 | } |
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540 | |
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541 | void firstANode(Node& node) const { |
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542 | node.id = 2 * _aNodeNum - 2; |
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543 | if (node.id < 0) node.id = -1; |
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544 | } |
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545 | void nextANode(Node& node) const { |
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546 | node.id -= 2; |
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547 | if (node.id < 0) node.id = -1; |
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548 | } |
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549 | |
---|
550 | void firstBNode(Node& node) const { |
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551 | node.id = 2 * _bNodeNum - 1; |
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552 | } |
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553 | void nextBNode(Node& node) const { |
---|
554 | node.id -= 2; |
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555 | } |
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556 | |
---|
557 | void first(Node& node) const { |
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558 | if (_aNodeNum > 0) { |
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559 | node.id = 2 * _aNodeNum - 2; |
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560 | } else { |
---|
561 | node.id = 2 * _bNodeNum - 1; |
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562 | } |
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563 | } |
---|
564 | void next(Node& node) const { |
---|
565 | node.id -= 2; |
---|
566 | if (node.id == -2) { |
---|
567 | node.id = 2 * _bNodeNum - 1; |
---|
568 | } |
---|
569 | } |
---|
570 | |
---|
571 | void first(UEdge& edge) const { |
---|
572 | edge.id = _edgeNum - 1; |
---|
573 | } |
---|
574 | void next(UEdge& edge) const { |
---|
575 | --edge.id; |
---|
576 | } |
---|
577 | |
---|
578 | void firstFromANode(UEdge& edge, const Node& node) const { |
---|
579 | LEMON_ASSERT((node.id & 1) == 0, NodeSetError()); |
---|
580 | edge.id = (node.id >> 1) * _bNodeNum; |
---|
581 | } |
---|
582 | void nextFromANode(UEdge& edge) const { |
---|
583 | ++(edge.id); |
---|
584 | if (edge.id % _bNodeNum == 0) edge.id = -1; |
---|
585 | } |
---|
586 | |
---|
587 | void firstFromBNode(UEdge& edge, const Node& node) const { |
---|
588 | LEMON_ASSERT((node.id & 1) == 1, NodeSetError()); |
---|
589 | edge.id = (node.id >> 1); |
---|
590 | } |
---|
591 | void nextFromBNode(UEdge& edge) const { |
---|
592 | edge.id += _bNodeNum; |
---|
593 | if (edge.id >= _edgeNum) edge.id = -1; |
---|
594 | } |
---|
595 | |
---|
596 | static int id(const Node& node) { |
---|
597 | return node.id; |
---|
598 | } |
---|
599 | static Node nodeFromId(int id) { |
---|
600 | return Node(id); |
---|
601 | } |
---|
602 | int maxNodeId() const { |
---|
603 | return _aNodeNum > _bNodeNum ? |
---|
604 | _aNodeNum * 2 - 2 : _bNodeNum * 2 - 1; |
---|
605 | } |
---|
606 | |
---|
607 | static int id(const UEdge& edge) { |
---|
608 | return edge.id; |
---|
609 | } |
---|
610 | static UEdge uEdgeFromId(int id) { |
---|
611 | return UEdge(id); |
---|
612 | } |
---|
613 | int maxUEdgeId() const { |
---|
614 | return _edgeNum - 1; |
---|
615 | } |
---|
616 | |
---|
617 | static int aNodeId(const Node& node) { |
---|
618 | return node.id >> 1; |
---|
619 | } |
---|
620 | static Node fromANodeId(int id) { |
---|
621 | return Node(id << 1); |
---|
622 | } |
---|
623 | int maxANodeId() const { |
---|
624 | return _aNodeNum; |
---|
625 | } |
---|
626 | |
---|
627 | static int bNodeId(const Node& node) { |
---|
628 | return node.id >> 1; |
---|
629 | } |
---|
630 | static Node fromBNodeId(int id) { |
---|
631 | return Node((id << 1) + 1); |
---|
632 | } |
---|
633 | int maxBNodeId() const { |
---|
634 | return _bNodeNum; |
---|
635 | } |
---|
636 | |
---|
637 | Node aNode(const UEdge& edge) const { |
---|
638 | return Node((edge.id / _bNodeNum) << 1); |
---|
639 | } |
---|
640 | Node bNode(const UEdge& edge) const { |
---|
641 | return Node(((edge.id % _bNodeNum) << 1) + 1); |
---|
642 | } |
---|
643 | |
---|
644 | static bool aNode(const Node& node) { |
---|
645 | return (node.id & 1) == 0; |
---|
646 | } |
---|
647 | |
---|
648 | static bool bNode(const Node& node) { |
---|
649 | return (node.id & 1) == 1; |
---|
650 | } |
---|
651 | |
---|
652 | static Node aNode(int index) { |
---|
653 | return Node(index << 1); |
---|
654 | } |
---|
655 | |
---|
656 | static Node bNode(int index) { |
---|
657 | return Node((index << 1) + 1); |
---|
658 | } |
---|
659 | |
---|
660 | typedef True NodeNumTag; |
---|
661 | int nodeNum() const { return _aNodeNum + _bNodeNum; } |
---|
662 | int aNodeNum() const { return _aNodeNum; } |
---|
663 | int bNodeNum() const { return _bNodeNum; } |
---|
664 | |
---|
665 | typedef True EdgeNumTag; |
---|
666 | int uEdgeNum() const { return _edgeNum; } |
---|
667 | |
---|
668 | }; |
---|
669 | |
---|
670 | |
---|
671 | typedef BpUGraphExtender<FullBpUGraphBase> ExtendedFullBpUGraphBase; |
---|
672 | |
---|
673 | |
---|
674 | /// \ingroup graphs |
---|
675 | /// |
---|
676 | /// \brief An undirected full bipartite graph class. |
---|
677 | /// |
---|
678 | /// This is a simple and fast bipartite undirected full graph implementation. |
---|
679 | /// It is completely static, so you can neither add nor delete either |
---|
680 | /// edges or nodes. |
---|
681 | /// |
---|
682 | /// \sa FullUGraphBase |
---|
683 | /// \sa FullGraph |
---|
684 | /// |
---|
685 | /// \author Balazs Dezso |
---|
686 | class FullBpUGraph : |
---|
687 | public ExtendedFullBpUGraphBase { |
---|
688 | public: |
---|
689 | |
---|
690 | typedef ExtendedFullBpUGraphBase Parent; |
---|
691 | |
---|
692 | FullBpUGraph() { |
---|
693 | Parent::construct(0, 0); |
---|
694 | } |
---|
695 | |
---|
696 | FullBpUGraph(int aNodeNum, int bNodeNum) { |
---|
697 | Parent::construct(aNodeNum, bNodeNum); |
---|
698 | } |
---|
699 | |
---|
700 | /// \brief Resize the graph |
---|
701 | /// |
---|
702 | void resize(int n, int m) { |
---|
703 | Parent::getNotifier(Edge()).clear(); |
---|
704 | Parent::getNotifier(UEdge()).clear(); |
---|
705 | Parent::getNotifier(Node()).clear(); |
---|
706 | Parent::getNotifier(ANode()).clear(); |
---|
707 | Parent::getNotifier(BNode()).clear(); |
---|
708 | construct(n, m); |
---|
709 | Parent::getNotifier(ANode()).build(); |
---|
710 | Parent::getNotifier(BNode()).build(); |
---|
711 | Parent::getNotifier(Node()).build(); |
---|
712 | Parent::getNotifier(UEdge()).build(); |
---|
713 | Parent::getNotifier(Edge()).build(); |
---|
714 | } |
---|
715 | }; |
---|
716 | |
---|
717 | } //namespace lemon |
---|
718 | |
---|
719 | |
---|
720 | #endif //LEMON_FULL_GRAPH_H |
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