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marci@301
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// -*- c++ -*-
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marci@301
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#include <iostream>
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marci@301
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3 |
#include <vector>
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marci@301
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#include <string>
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marci@301
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marci@642
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#include <sage_graph.h>
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alpar@921
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7 |
#include <lemon/smart_graph.h>
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marci@602
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8 |
#include <bfs_dfs.h>
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alpar@921
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9 |
#include <lemon/graph_wrapper.h>
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marci@301
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10 |
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alpar@921
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using namespace lemon;
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marci@777
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marci@301
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using std::cout;
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marci@301
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using std::endl;
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marci@301
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using std::string;
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marci@301
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marci@301
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template <typename Graph, typename NodeNameMap>
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marci@301
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class EdgeNameMap {
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marci@301
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Graph& graph;
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marci@301
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NodeNameMap& node_name_map;
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marci@301
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public:
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marci@301
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EdgeNameMap(Graph& _graph, NodeNameMap& _node_name_map) :
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marci@301
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graph(_graph), node_name_map(_node_name_map) { }
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marci@304
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string operator[](typename Graph::Edge e) const {
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marci@301
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return
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marci@304
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(node_name_map[graph.tail(e)]+"->"+node_name_map[graph.head(e)]);
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marci@301
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}
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marci@301
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};
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marci@301
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marci@301
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int main (int, char*[])
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marci@301
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{
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alpar@774
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typedef SmartGraph Graph;
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alpar@774
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//typedef SageGraph Graph;
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marci@301
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marci@301
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typedef Graph::Node Node;
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marci@301
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typedef Graph::Edge Edge;
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marci@301
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marci@301
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Graph G;
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marci@301
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39 |
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marci@301
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Node s=G.addNode();
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marci@301
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Node v1=G.addNode();
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marci@301
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Node v2=G.addNode();
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marci@301
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Node v3=G.addNode();
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marci@301
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Node v4=G.addNode();
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marci@301
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Node t=G.addNode();
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marci@301
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marci@301
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Graph::NodeMap<string> node_name(G);
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marci@301
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node_name.set(s, "s");
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marci@301
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node_name.set(v1, "v1");
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marci@301
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node_name.set(v2, "v2");
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marci@301
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node_name.set(v3, "v3");
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marci@301
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node_name.set(v4, "v4");
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marci@301
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node_name.set(t, "t");
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marci@301
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54 |
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marci@301
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G.addEdge(s, v1);
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marci@301
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G.addEdge(s, v2);
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marci@301
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G.addEdge(v1, v2);
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marci@301
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G.addEdge(v2, v1);
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marci@301
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G.addEdge(v1, v3);
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marci@301
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G.addEdge(v3, v2);
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marci@301
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G.addEdge(v2, v4);
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marci@301
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G.addEdge(v4, v3);
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marci@301
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G.addEdge(v3, t);
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marci@301
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G.addEdge(v4, t);
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marci@301
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marci@301
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cout << " /--> -------------> "<< endl;
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marci@301
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cout << " / /-- v1 <-\\ /---- v3-\\ "<< endl;
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marci@301
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cout << " / | | / /-> \\ "<< endl;
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marci@301
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cout << " / | | / | ^ \\ "<< endl;
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marci@301
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cout << "s | | / | | \\-> t "<< endl;
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marci@301
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cout << " \\ | | / | | /-> "<< endl;
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marci@301
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cout << " \\ | --/ / | | / "<< endl;
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marci@301
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cout << " \\ \\-> v2 <--/ \\-- v4 -/ "<< endl;
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marci@301
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cout << " \\--> -------------> "<< endl;
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marci@301
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marci@301
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{
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marci@312
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EdgeNameMap< Graph, Graph::NodeMap<string> > edge_name(G, node_name);
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marci@301
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marci@301
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cout << "bfs and dfs iterator demo on the directed graph" << endl;
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alpar@774
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for(Graph::NodeIt n(G); n!=INVALID; ++n) {
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marci@304
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cout << node_name[n] << ": ";
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marci@301
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cout << "out edges: ";
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alpar@774
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for(Graph::OutEdgeIt e(G, n); e!=INVALID; ++e)
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marci@304
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cout << edge_name[e] << " ";
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marci@301
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cout << "in edges: ";
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alpar@774
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for(Graph::InEdgeIt e(G, n); e!=INVALID; ++e)
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marci@304
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cout << edge_name[e] << " ";
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marci@301
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cout << endl;
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marci@301
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}
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marci@301
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marci@301
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cout << "bfs from s ..." << endl;
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marci@360
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BfsIterator< Graph, Graph::NodeMap<bool> > bfs(G);
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marci@301
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bfs.pushAndSetReached(s);
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marci@301
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while (!bfs.finished()) {
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marci@301
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//cout << "edge: ";
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marci@777
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if (Graph::Edge(bfs)!=INVALID) {
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marci@304
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cout << edge_name[bfs] << /*endl*/", " <<
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alpar@774
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node_name[G.tail(bfs)] <<
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marci@301
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(bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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alpar@774
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node_name[G.head(bfs)] <<
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marci@301
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(bfs.isBNodeNewlyReached() ? ": is newly reached." :
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marci@301
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": is not newly reached.");
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marci@301
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} else {
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marci@301
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cout << "invalid" << /*endl*/", " <<
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marci@777
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node_name[bfs.tail()] <<
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marci@301
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(bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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marci@301
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marci@301
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"invalid.";
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marci@301
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}
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marci@301
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cout << endl;
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marci@301
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++bfs;
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marci@301
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}
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marci@301
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113 |
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marci@301
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cout << " /--> -------------> "<< endl;
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marci@301
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cout << " / /-- v1 <-\\ /---- v3-\\ "<< endl;
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marci@301
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cout << " / | | / /-> \\ "<< endl;
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marci@301
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cout << " / | | / | ^ \\ "<< endl;
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marci@301
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cout << "s | | / | | \\-> t "<< endl;
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marci@301
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cout << " \\ | | / | | /-> "<< endl;
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marci@301
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cout << " \\ | --/ / | | / "<< endl;
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marci@301
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cout << " \\ \\-> v2 <--/ \\-- v4 -/ "<< endl;
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marci@301
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cout << " \\--> -------------> "<< endl;
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marci@301
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123 |
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marci@301
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cout << "dfs from s ..." << endl;
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marci@360
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125 |
DfsIterator< Graph, Graph::NodeMap<bool> > dfs(G);
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marci@301
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dfs.pushAndSetReached(s);
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marci@301
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while (!dfs.finished()) {
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marci@301
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++dfs;
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marci@301
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//cout << "edge: ";
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marci@777
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if (Graph::Edge(dfs)!=INVALID) {
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marci@304
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cout << edge_name[dfs] << /*endl*/", " <<
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alpar@774
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node_name[G.tail(dfs)] <<
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marci@301
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(dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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alpar@774
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node_name[G.head(dfs)] <<
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marci@301
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(dfs.isBNodeNewlyReached() ? ": is newly reached." :
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marci@301
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": is not newly reached.");
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marci@301
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} else {
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marci@301
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cout << "invalid" << /*endl*/", " <<
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marci@777
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node_name[dfs.tail()] <<
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marci@301
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(dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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marci@301
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141 |
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marci@301
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"invalid.";
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marci@301
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}
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marci@301
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cout << endl;
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marci@301
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}
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marci@301
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}
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marci@301
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147 |
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marci@301
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148 |
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marci@301
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{
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marci@312
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typedef RevGraphWrapper<const Graph> GW;
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marci@301
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GW gw(G);
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marci@301
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152 |
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marci@301
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EdgeNameMap< GW, Graph::NodeMap<string> > edge_name(gw, node_name);
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marci@301
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154 |
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marci@301
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155 |
cout << "bfs and dfs iterator demo on the reversed directed graph" << endl;
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alpar@774
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156 |
for(GW::NodeIt n(gw); n!=INVALID; ++n) {
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marci@317
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157 |
cout << node_name[GW::Node(n)] << ": ";
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marci@301
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158 |
cout << "out edges: ";
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alpar@774
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159 |
for(GW::OutEdgeIt e(gw, n); e!=INVALID; ++e)
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marci@304
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160 |
cout << edge_name[e] << " ";
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marci@301
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161 |
cout << "in edges: ";
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alpar@774
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162 |
for(GW::InEdgeIt e(gw, n); e!=INVALID; ++e)
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marci@304
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163 |
cout << edge_name[e] << " ";
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marci@301
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164 |
cout << endl;
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marci@301
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165 |
}
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marci@301
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166 |
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marci@301
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167 |
cout << "bfs from t ..." << endl;
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marci@360
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168 |
BfsIterator< GW, GW::NodeMap<bool> > bfs(gw);
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marci@301
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169 |
bfs.pushAndSetReached(t);
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marci@301
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170 |
while (!bfs.finished()) {
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marci@301
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171 |
//cout << "edge: ";
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marci@777
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172 |
if (GW::Edge(bfs)!=INVALID) {
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marci@777
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173 |
cout << edge_name[GW::Edge(bfs)] << /*endl*/", " <<
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alpar@774
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174 |
node_name[gw.tail(bfs)] <<
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marci@301
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175 |
(bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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alpar@774
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176 |
node_name[gw.head(bfs)] <<
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marci@301
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177 |
(bfs.isBNodeNewlyReached() ? ": is newly reached." :
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marci@301
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178 |
": is not newly reached.");
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marci@301
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179 |
} else {
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marci@301
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180 |
cout << "invalid" << /*endl*/", " <<
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marci@777
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181 |
node_name[bfs.tail()] <<
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marci@301
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182 |
(bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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marci@301
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183 |
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marci@301
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184 |
"invalid.";
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marci@301
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185 |
}
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marci@301
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186 |
cout << endl;
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marci@301
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187 |
++bfs;
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marci@301
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188 |
}
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marci@301
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189 |
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marci@301
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190 |
cout << " /--> -------------> "<< endl;
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marci@301
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191 |
cout << " / /-- v1 <-\\ /---- v3-\\ "<< endl;
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marci@301
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192 |
cout << " / | | / /-> \\ "<< endl;
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marci@301
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193 |
cout << " / | | / | ^ \\ "<< endl;
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marci@301
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194 |
cout << "s | | / | | \\-> t "<< endl;
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marci@301
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195 |
cout << " \\ | | / | | /-> "<< endl;
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marci@301
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196 |
cout << " \\ | --/ / | | / "<< endl;
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marci@301
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197 |
cout << " \\ \\-> v2 <--/ \\-- v4 -/ "<< endl;
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marci@301
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198 |
cout << " \\--> -------------> "<< endl;
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marci@301
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199 |
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marci@301
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200 |
cout << "dfs from t ..." << endl;
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marci@360
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201 |
DfsIterator< GW, GW::NodeMap<bool> > dfs(gw);
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marci@301
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202 |
dfs.pushAndSetReached(t);
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marci@301
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203 |
while (!dfs.finished()) {
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marci@301
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204 |
++dfs;
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marci@301
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205 |
//cout << "edge: ";
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marci@777
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206 |
if (GW::Edge(dfs)!=INVALID) {
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marci@777
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207 |
cout << edge_name[GW::Edge(dfs)] << /*endl*/", " <<
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alpar@774
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208 |
node_name[gw.tail(dfs)] <<
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marci@301
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209 |
(dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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alpar@774
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210 |
node_name[gw.head(dfs)] <<
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marci@301
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211 |
(dfs.isBNodeNewlyReached() ? ": is newly reached." :
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marci@301
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212 |
": is not newly reached.");
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marci@301
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213 |
} else {
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marci@301
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214 |
cout << "invalid" << /*endl*/", " <<
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marci@777
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215 |
node_name[dfs.tail()] <<
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marci@301
|
216 |
(dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
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marci@301
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217 |
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marci@301
|
218 |
"invalid.";
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marci@301
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219 |
}
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marci@301
|
220 |
cout << endl;
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marci@301
|
221 |
}
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marci@301
|
222 |
}
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marci@301
|
223 |
|
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alpar@774
|
224 |
// {
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alpar@774
|
225 |
// typedef UndirGraphWrapper<const Graph> GW;
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alpar@774
|
226 |
// GW gw(G);
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alpar@774
|
227 |
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alpar@774
|
228 |
// EdgeNameMap< GW, Graph::NodeMap<string> > edge_name(gw, node_name);
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alpar@774
|
229 |
|
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alpar@774
|
230 |
// cout << "bfs and dfs iterator demo on the undirected graph" << endl;
|
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alpar@774
|
231 |
// for(GW::NodeIt n(gw); gw.valid(n); gw.next(n)) {
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alpar@774
|
232 |
// cout << node_name[GW::Node(n)] << ": ";
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alpar@774
|
233 |
// cout << "out edges: ";
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alpar@774
|
234 |
// for(GW::OutEdgeIt e(gw, n); gw.valid(e); gw.next(e))
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alpar@774
|
235 |
// cout << edge_name[e] << " ";
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alpar@774
|
236 |
// cout << "in edges: ";
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alpar@774
|
237 |
// for(GW::InEdgeIt e(gw, n); gw.valid(e); gw.next(e))
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alpar@774
|
238 |
// cout << edge_name[e] << " ";
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alpar@774
|
239 |
// cout << endl;
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alpar@774
|
240 |
// }
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alpar@774
|
241 |
// // for(GW::EdgeIt e=gw.first<GW::EdgeIt>(); gw.valid(e); gw.next(e)) {
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alpar@774
|
242 |
// // cout << edge_name.get(e) << " ";
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alpar@774
|
243 |
// // }
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alpar@774
|
244 |
// // cout << endl;
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alpar@774
|
245 |
|
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alpar@774
|
246 |
// cout << "bfs from t ..." << endl;
|
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alpar@774
|
247 |
// BfsIterator< GW, GW::NodeMap<bool> > bfs(gw);
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alpar@774
|
248 |
// bfs.pushAndSetReached(t);
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alpar@774
|
249 |
// while (!bfs.finished()) {
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alpar@774
|
250 |
// //cout << "edge: ";
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alpar@774
|
251 |
// if (gw.valid(GW::OutEdgeIt(bfs))) {
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alpar@774
|
252 |
// cout << edge_name[GW::OutEdgeIt(bfs)] << /*endl*/", " <<
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alpar@774
|
253 |
// node_name[gw.aNode(bfs)] <<
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alpar@774
|
254 |
// (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
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alpar@774
|
255 |
// node_name[gw.bNode(bfs)] <<
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alpar@774
|
256 |
// (bfs.isBNodeNewlyReached() ? ": is newly reached." :
|
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alpar@774
|
257 |
// ": is not newly reached.");
|
|
alpar@774
|
258 |
// } else {
|
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alpar@774
|
259 |
// cout << "invalid" << /*endl*/", " <<
|
|
alpar@774
|
260 |
// node_name[bfs.aNode()] <<
|
|
alpar@774
|
261 |
// (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
alpar@774
|
262 |
|
|
alpar@774
|
263 |
// "invalid.";
|
|
alpar@774
|
264 |
// }
|
|
alpar@774
|
265 |
// cout << endl;
|
|
alpar@774
|
266 |
// ++bfs;
|
|
alpar@774
|
267 |
// }
|
|
alpar@774
|
268 |
|
|
alpar@774
|
269 |
// cout << " /--> -------------> "<< endl;
|
|
alpar@774
|
270 |
// cout << " / /-- v1 <-\\ /---- v3-\\ "<< endl;
|
|
alpar@774
|
271 |
// cout << " / | | / /-> \\ "<< endl;
|
|
alpar@774
|
272 |
// cout << " / | | / | ^ \\ "<< endl;
|
|
alpar@774
|
273 |
// cout << "s | | / | | \\-> t "<< endl;
|
|
alpar@774
|
274 |
// cout << " \\ | | / | | /-> "<< endl;
|
|
alpar@774
|
275 |
// cout << " \\ | --/ / | | / "<< endl;
|
|
alpar@774
|
276 |
// cout << " \\ \\-> v2 <--/ \\-- v4 -/ "<< endl;
|
|
alpar@774
|
277 |
// cout << " \\--> -------------> "<< endl;
|
|
alpar@774
|
278 |
|
|
alpar@774
|
279 |
// cout << "dfs from t ..." << endl;
|
|
alpar@774
|
280 |
// DfsIterator< GW, GW::NodeMap<bool> > dfs(gw);
|
|
alpar@774
|
281 |
// dfs.pushAndSetReached(t);
|
|
alpar@774
|
282 |
// while (!dfs.finished()) {
|
|
alpar@774
|
283 |
// ++dfs;
|
|
alpar@774
|
284 |
// //cout << "edge: ";
|
|
alpar@774
|
285 |
// if (gw.valid(GW::OutEdgeIt(dfs))) {
|
|
alpar@774
|
286 |
// cout << edge_name[GW::OutEdgeIt(dfs)] << /*endl*/", " <<
|
|
alpar@774
|
287 |
// node_name[gw.aNode(dfs)] <<
|
|
alpar@774
|
288 |
// (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
alpar@774
|
289 |
// node_name[gw.bNode(dfs)] <<
|
|
alpar@774
|
290 |
// (dfs.isBNodeNewlyReached() ? ": is newly reached." :
|
|
alpar@774
|
291 |
// ": is not newly reached.");
|
|
alpar@774
|
292 |
// } else {
|
|
alpar@774
|
293 |
// cout << "invalid" << /*endl*/", " <<
|
|
alpar@774
|
294 |
// node_name[dfs.aNode()] <<
|
|
alpar@774
|
295 |
// (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
alpar@774
|
296 |
|
|
alpar@774
|
297 |
// "invalid.";
|
|
alpar@774
|
298 |
// }
|
|
alpar@774
|
299 |
// cout << endl;
|
|
alpar@774
|
300 |
// }
|
|
alpar@774
|
301 |
// }
|
|
alpar@774
|
302 |
|
|
alpar@774
|
303 |
|
|
alpar@774
|
304 |
|
|
marci@301
|
305 |
{
|
|
alpar@774
|
306 |
typedef BidirGraphWrapper<const Graph> GW;
|
|
marci@301
|
307 |
GW gw(G);
|
|
marci@301
|
308 |
|
|
marci@301
|
309 |
EdgeNameMap< GW, Graph::NodeMap<string> > edge_name(gw, node_name);
|
|
marci@301
|
310 |
|
|
alpar@774
|
311 |
cout << "bfs and dfs iterator demo on the bidirected graph" << endl;
|
|
alpar@774
|
312 |
// for(GW::EdgeIt e(gw); e!=INVALID; ++e) {
|
|
alpar@774
|
313 |
// cout << node_name[gw.tail(e)] << "->" << node_name[gw.head(e)] << " ";
|
|
alpar@774
|
314 |
// }
|
|
alpar@774
|
315 |
for(GW::NodeIt n(gw); n!=INVALID; ++n) {
|
|
marci@317
|
316 |
cout << node_name[GW::Node(n)] << ": ";
|
|
marci@301
|
317 |
cout << "out edges: ";
|
|
alpar@774
|
318 |
for(GW::OutEdgeIt e(gw, n); e!=INVALID; ++e)
|
|
marci@304
|
319 |
cout << edge_name[e] << " ";
|
|
marci@301
|
320 |
cout << "in edges: ";
|
|
alpar@774
|
321 |
for(GW::InEdgeIt e(gw, n); e!=INVALID; ++e)
|
|
marci@304
|
322 |
cout << edge_name[e] << " ";
|
|
marci@301
|
323 |
cout << endl;
|
|
marci@301
|
324 |
}
|
|
marci@301
|
325 |
// for(GW::EdgeIt e=gw.first<GW::EdgeIt>(); gw.valid(e); gw.next(e)) {
|
|
marci@301
|
326 |
// cout << edge_name.get(e) << " ";
|
|
marci@301
|
327 |
// }
|
|
marci@301
|
328 |
// cout << endl;
|
|
marci@301
|
329 |
|
|
marci@301
|
330 |
cout << "bfs from t ..." << endl;
|
|
marci@360
|
331 |
BfsIterator< GW, GW::NodeMap<bool> > bfs(gw);
|
|
marci@301
|
332 |
bfs.pushAndSetReached(t);
|
|
marci@301
|
333 |
while (!bfs.finished()) {
|
|
marci@301
|
334 |
//cout << "edge: ";
|
|
marci@777
|
335 |
if (GW::Edge(bfs)!=INVALID) {
|
|
marci@777
|
336 |
cout << edge_name[GW::Edge(bfs)] << /*endl*/", " <<
|
|
alpar@774
|
337 |
node_name[gw.tail(bfs)] <<
|
|
marci@301
|
338 |
(bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
alpar@774
|
339 |
node_name[gw.head(bfs)] <<
|
|
marci@301
|
340 |
(bfs.isBNodeNewlyReached() ? ": is newly reached." :
|
|
marci@301
|
341 |
": is not newly reached.");
|
|
marci@301
|
342 |
} else {
|
|
marci@301
|
343 |
cout << "invalid" << /*endl*/", " <<
|
|
marci@777
|
344 |
node_name[bfs.tail()] <<
|
|
marci@301
|
345 |
(bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
marci@301
|
346 |
|
|
marci@301
|
347 |
"invalid.";
|
|
marci@301
|
348 |
}
|
|
marci@301
|
349 |
cout << endl;
|
|
marci@301
|
350 |
++bfs;
|
|
marci@301
|
351 |
}
|
|
marci@301
|
352 |
|
|
marci@301
|
353 |
cout << " /--> -------------> "<< endl;
|
|
marci@301
|
354 |
cout << " / /-- v1 <-\\ /---- v3-\\ "<< endl;
|
|
marci@301
|
355 |
cout << " / | | / /-> \\ "<< endl;
|
|
marci@301
|
356 |
cout << " / | | / | ^ \\ "<< endl;
|
|
marci@301
|
357 |
cout << "s | | / | | \\-> t "<< endl;
|
|
marci@301
|
358 |
cout << " \\ | | / | | /-> "<< endl;
|
|
marci@301
|
359 |
cout << " \\ | --/ / | | / "<< endl;
|
|
marci@301
|
360 |
cout << " \\ \\-> v2 <--/ \\-- v4 -/ "<< endl;
|
|
marci@301
|
361 |
cout << " \\--> -------------> "<< endl;
|
|
marci@301
|
362 |
|
|
marci@301
|
363 |
cout << "dfs from t ..." << endl;
|
|
marci@360
|
364 |
DfsIterator< GW, GW::NodeMap<bool> > dfs(gw);
|
|
marci@301
|
365 |
dfs.pushAndSetReached(t);
|
|
marci@301
|
366 |
while (!dfs.finished()) {
|
|
marci@301
|
367 |
++dfs;
|
|
marci@301
|
368 |
//cout << "edge: ";
|
|
marci@777
|
369 |
if (GW::Edge(dfs)!=INVALID) {
|
|
marci@777
|
370 |
cout << edge_name[GW::Edge(dfs)] << /*endl*/", " <<
|
|
alpar@774
|
371 |
node_name[gw.tail(dfs)] <<
|
|
marci@301
|
372 |
(dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
alpar@774
|
373 |
node_name[gw.head(dfs)] <<
|
|
marci@301
|
374 |
(dfs.isBNodeNewlyReached() ? ": is newly reached." :
|
|
marci@301
|
375 |
": is not newly reached.");
|
|
marci@301
|
376 |
} else {
|
|
marci@301
|
377 |
cout << "invalid" << /*endl*/", " <<
|
|
marci@777
|
378 |
node_name[dfs.tail()] <<
|
|
marci@301
|
379 |
(dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") <<
|
|
marci@301
|
380 |
|
|
marci@301
|
381 |
"invalid.";
|
|
marci@301
|
382 |
}
|
|
marci@301
|
383 |
cout << endl;
|
|
marci@301
|
384 |
}
|
|
marci@301
|
385 |
}
|
|
marci@301
|
386 |
|
|
marci@301
|
387 |
return 0;
|
|
marci@301
|
388 |
}
|