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marci@45
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#include <iostream>
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marci@45
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#include <vector>
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marci@45
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#include <string>
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marci@45
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marci@45
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#include <list_graph.hh>
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marci@45
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#include <bfs_iterator.hh>
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marci@45
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alpar@921
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using namespace lemon;
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marci@45
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marci@45
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int main (int, char*[])
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marci@45
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{
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marci@45
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typedef ListGraph::NodeIt NodeIt;
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marci@45
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typedef ListGraph::EdgeIt EdgeIt;
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marci@45
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typedef ListGraph::EachNodeIt EachNodeIt;
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marci@45
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typedef ListGraph::EachEdgeIt EachEdgeIt;
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marci@45
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typedef ListGraph::OutEdgeIt OutEdgeIt;
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marci@45
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typedef ListGraph::InEdgeIt InEdgeIt;
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marci@45
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typedef ListGraph::SymEdgeIt SymEdgeIt;
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marci@45
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19 |
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marci@45
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20 |
ListGraph G;
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marci@45
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21 |
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marci@45
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NodeIt s=G.addNode();
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marci@45
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NodeIt v1=G.addNode();
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marci@45
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NodeIt v2=G.addNode();
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marci@45
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NodeIt v3=G.addNode();
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marci@45
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NodeIt v4=G.addNode();
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marci@45
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NodeIt t=G.addNode();
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marci@45
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marci@45
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G.addEdge(s, v1);
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marci@45
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G.addEdge(s, v2);
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marci@45
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G.addEdge(v1, v2);
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marci@45
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G.addEdge(v2, v1);
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marci@45
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G.addEdge(v1, v3);
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marci@45
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G.addEdge(v3, v2);
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marci@45
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G.addEdge(v2, v4);
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marci@45
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G.addEdge(v4, v3);
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marci@45
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G.addEdge(v3, t);
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marci@45
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G.addEdge(v4, t);
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marci@45
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marci@45
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std::cout << "bfs and dfs demo on the directed graph" << std::endl;
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marci@45
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for(EachNodeIt i=G.first<EachNodeIt>(); i.valid(); ++i) {
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marci@45
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std::cout << i << ": ";
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marci@45
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std::cout << "out edges: ";
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marci@45
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for(OutEdgeIt j=G.first<OutEdgeIt>(i); j.valid(); ++j)
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marci@45
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std::cout << j << " ";
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marci@45
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std::cout << "in edges: ";
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marci@45
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for(InEdgeIt j=G.first<InEdgeIt>(i); j.valid(); ++j)
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marci@45
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std::cout << j << " ";
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marci@45
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std::cout << std::endl;
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marci@45
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}
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marci@45
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marci@45
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//std::cout << std::endl;
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marci@45
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//EachNodeIt u1=G.first<EachNodeIt>();
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marci@45
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//EachEdgeIt u=G.first<EachEdgeIt>();
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marci@45
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//OutEdgeIt u=G.first<OutEdgeIt>(s);
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marci@45
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//InEdgeIt u=G.first<InEdgeIt>(s);
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marci@45
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//SymEdgeIt u=G.first<SymEdgeIt>(s);
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marci@45
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//OutEdgeIt u=G.first<OutEdgeIt>(s);
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marci@45
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//EachNodeIt u=G.first<EachNodeIt>();
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marci@45
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//EachEdgeIt u=G.first<EachEdgeIt>();
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marci@45
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//OutEdgeIt u=G.first<OutEdgeIt>(s);
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marci@45
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//InEdgeIt u=G.first<InEdgeIt>(s);
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marci@45
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//SymEdgeIt u=G.first<SymEdgeIt>(s);
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marci@45
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//u=G.first(s);
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marci@45
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//u=G.first_ize(s, OutEdgeIt());
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marci@45
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//std::cout << "ize " << u << std::endl;
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marci@45
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marci@45
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/*
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marci@45
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{
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marci@45
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std::cout << "iterator bfs demo..." << std::endl;
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marci@45
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NodePropertyVector<ListGraph, bool> reached(G, false);
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marci@45
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reached.set(s, true);
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marci@45
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std::queue<ListGraph::OutEdgeIt> bfs_queue;
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marci@45
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bfs_queue.push(G.firstOutEdge(G.firstNode()));
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marci@45
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BfsIterator< ListGraph, ListGraph::OutEdgeIt, NodePropertyVector<ListGraph, bool> > bfs(G, bfs_queue, reached);
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marci@45
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for ( ; !bfs.finished(); ++bfs) {
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marci@45
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if (OutEdgeIt(bfs).valid()) {
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marci@45
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std::cout << "OutEdgeIt: " << bfs;
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marci@45
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std::cout << " aNode: " << G.aNode(bfs);
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marci@45
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std::cout << " bNode: " << G.bNode(bfs) << " ";
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marci@45
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} else {
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marci@45
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std::cout << "OutEdgeIt: " << "invalid";
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std::cout << " aNode: " << G.aNode(bfs);
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marci@45
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std::cout << " bNode: " << "invalid" << " ";
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marci@45
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}
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marci@45
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if (bfs.bNodeIsNewlyReached()) {
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marci@45
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std::cout << "bNodeIsNewlyReached ";
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marci@45
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} else {
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marci@45
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std::cout << "bNodeIsNotNewlyReached ";
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marci@45
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}
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marci@45
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if (bfs.aNodeIsExamined()) {
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marci@45
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std::cout << "aNodeIsExamined ";
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marci@45
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} else {
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marci@45
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std::cout << "aNodeIsNotExamined ";
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marci@45
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}
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marci@45
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std::cout<<std::endl;
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marci@45
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}
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marci@45
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}
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marci@45
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marci@45
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{
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marci@45
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std::cout << "iterator dfs demo..." << std::endl;
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marci@45
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NodePropertyVector<ListGraph, bool> reached(G, false);
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marci@45
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reached.set(s, true);
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marci@45
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std::stack<ListGraph::OutEdgeIt> dfs_stack;
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marci@45
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dfs_stack.push(G.firstOutEdge(G.firstNode()));
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marci@45
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DfsIterator< ListGraph, ListGraph::OutEdgeIt, NodePropertyVector<ListGraph, bool> > dfs(G, dfs_stack, reached);
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marci@45
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for(; !dfs.finished(); ++dfs) {
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marci@45
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if (OutEdgeIt(dfs).valid()) {
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marci@45
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std::cout << "OutEdgeIt: " << dfs;
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marci@45
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std::cout << " aNode: " << G.aNode(dfs);
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marci@45
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std::cout << " bNode: " << G.bNode(dfs) << " ";
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marci@45
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} else {
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marci@45
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std::cout << "OutEdgeIt: " << "invalid";
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marci@45
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std::cout << " aNode: " << G.aNode(dfs);
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marci@45
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std::cout << " bNode: " << "invalid" << " ";
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marci@45
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}
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marci@45
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if (dfs.bNodeIsNewlyReached()) {
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marci@45
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std::cout << "bNodeIsNewlyReached ";
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marci@45
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} else {
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marci@45
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std::cout << "bNodeIsNotNewlyReached ";
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marci@45
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}
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marci@45
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if (dfs.aNodeIsLeaved()) {
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marci@45
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std::cout << "aNodeIsLeaved ";
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marci@45
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} else {
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marci@45
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std::cout << "aNodeIsNotLeaved ";
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marci@45
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}
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marci@45
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std::cout<<std::endl;
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marci@45
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}
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marci@45
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if (OutEdgeIt(dfs).valid()) {
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marci@45
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std::cout << "OutEdgeIt: " << dfs;
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marci@45
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std::cout << " aNode: " << G.aNode(dfs);
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marci@45
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std::cout << " bNode: " << G.bNode(dfs) << " ";
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marci@45
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} else {
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marci@45
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std::cout << "OutEdgeIt: " << "invalid";
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marci@45
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std::cout << " aNode: " << G.aNode(dfs);
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marci@45
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std::cout << " bNode: " << "invalid" << " ";
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marci@45
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}
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marci@45
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if (dfs.bNodeIsNewlyReached()) {
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marci@45
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std::cout << "bNodeIsNewlyReached ";
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marci@45
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} else {
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marci@45
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std::cout << "bNodeIsNotNewlyReached ";
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marci@45
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}
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marci@45
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if (dfs.aNodeIsLeaved()) {
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marci@45
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std::cout << "aNodeIsLeaved ";
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marci@45
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} else {
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marci@45
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std::cout << "aNodeIsNotLeaved ";
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marci@45
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}
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marci@45
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std::cout<<std::endl;
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marci@45
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}
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marci@45
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*/
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marci@45
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marci@45
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{
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marci@45
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std::cout << "iterator bfs demo 1 ..." << std::endl;
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marci@45
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ListGraph::NodeMap<bool> reached(G, false);
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marci@45
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reached.set(s, true);
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marci@45
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std::queue<ListGraph::OutEdgeIt> bfs_queue;
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marci@45
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bfs_queue.push(G.first<OutEdgeIt>(s));
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marci@45
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BfsIterator1< ListGraph, ListGraph::OutEdgeIt, ListGraph::NodeMap<bool> > bfs(G, bfs_queue, reached);
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marci@45
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while (!bfs.finished()) {
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marci@45
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if (OutEdgeIt(bfs).valid()) {
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marci@45
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std::cout << "OutEdgeIt: " << bfs;
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marci@45
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std::cout << " aNode: " << G.aNode(bfs);
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marci@45
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std::cout << " bNode: " << G.bNode(bfs) << " ";
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marci@45
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} else {
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marci@45
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std::cout << "OutEdgeIt: " << "invalid";
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marci@45
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166 |
std::cout << " aNode: " << G.aNode(bfs);
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marci@45
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167 |
std::cout << " bNode: " << "invalid" << " ";
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marci@45
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}
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marci@45
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if (bfs.bNodeIsNewlyReached()) {
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marci@45
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170 |
std::cout << "bNodeIsNewlyReached ";
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marci@45
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} else {
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marci@45
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std::cout << "bNodeIsNotNewlyReached ";
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marci@45
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}
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marci@45
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174 |
if (bfs.aNodeIsExamined()) {
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marci@45
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175 |
std::cout << "aNodeIsExamined ";
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marci@45
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} else {
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marci@45
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std::cout << "aNodeIsNotExamined ";
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marci@45
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}
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marci@45
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179 |
std::cout<<std::endl;
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marci@45
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180 |
bfs.next();
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marci@45
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181 |
}
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marci@45
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182 |
}
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marci@45
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183 |
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marci@59
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184 |
{
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marci@59
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185 |
std::cout << "iterator bfs demo 2 ..." << std::endl;
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marci@59
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186 |
//ListGraph::NodeMap<bool> reached(G, false);
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marci@59
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187 |
//reached.set(s, true);
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marci@59
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//std::queue<ListGraph::OutEdgeIt> bfs_queue;
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marci@59
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189 |
//bfs_queue.push(G.first<OutEdgeIt>(s));
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marci@59
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190 |
BfsIterator2< ListGraph, ListGraph::OutEdgeIt, ListGraph::NodeMap<bool> > bfs(G);
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marci@59
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191 |
bfs.pushAndSetReached(s);
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marci@59
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192 |
while (!bfs.finished()) {
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marci@59
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193 |
if (OutEdgeIt(bfs).valid()) {
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marci@59
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194 |
std::cout << "OutEdgeIt: " << bfs;
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marci@59
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195 |
std::cout << " aNode: " << G.aNode(bfs);
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marci@59
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196 |
std::cout << " bNode: " << G.bNode(bfs) << " ";
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marci@59
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197 |
} else {
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marci@59
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198 |
std::cout << "OutEdgeIt: " << "invalid";
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marci@59
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199 |
std::cout << " aNode: " << G.aNode(bfs);
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marci@59
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200 |
std::cout << " bNode: " << "invalid" << " ";
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marci@59
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201 |
}
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marci@59
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202 |
if (bfs.isBNodeNewlyReached()) {
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marci@59
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203 |
std::cout << "bNodeIsNewlyReached ";
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marci@59
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204 |
} else {
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marci@59
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205 |
std::cout << "bNodeIsNotNewlyReached ";
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marci@59
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206 |
}
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marci@59
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207 |
if (bfs.isANodeExamined()) {
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marci@59
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208 |
std::cout << "aNodeIsExamined ";
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marci@59
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209 |
} else {
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marci@59
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210 |
std::cout << "aNodeIsNotExamined ";
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marci@59
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211 |
}
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marci@59
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212 |
std::cout<<std::endl;
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marci@59
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213 |
++bfs;
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marci@59
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214 |
}
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marci@59
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215 |
}
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marci@59
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216 |
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marci@59
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217 |
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marci@59
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218 |
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marci@45
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219 |
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marci@45
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220 |
{
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marci@45
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221 |
std::cout << "iterator dfs demo 1..." << std::endl;
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marci@45
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222 |
ListGraph::NodeMap<bool> reached(G, false);
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marci@45
|
223 |
reached.set(s, true);
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marci@45
|
224 |
std::stack<ListGraph::OutEdgeIt> dfs_stack;
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marci@45
|
225 |
dfs_stack.push(G.first<OutEdgeIt>(s));
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marci@45
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226 |
DfsIterator1< ListGraph, ListGraph::OutEdgeIt, ListGraph::NodeMap<bool> > dfs(G, dfs_stack, reached);
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marci@45
|
227 |
do {
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marci@45
|
228 |
dfs.next();
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marci@45
|
229 |
if (OutEdgeIt(dfs).valid()) {
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marci@45
|
230 |
std::cout << "OutEdgeIt: " << dfs;
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marci@45
|
231 |
std::cout << " aNode: " << G.aNode(dfs);
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marci@45
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232 |
std::cout << " bNode: " << G.bNode(dfs) << " ";
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marci@45
|
233 |
} else {
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marci@45
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234 |
std::cout << "OutEdgeIt: " << "invalid";
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marci@45
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235 |
std::cout << " aNode: " << G.aNode(dfs);
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marci@45
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236 |
std::cout << " bNode: " << "invalid" << " ";
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marci@45
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237 |
}
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marci@45
|
238 |
if (dfs.bNodeIsNewlyReached()) {
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marci@45
|
239 |
std::cout << "bNodeIsNewlyReached ";
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marci@45
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240 |
} else {
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marci@45
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241 |
std::cout << "bNodeIsNotNewlyReached ";
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marci@45
|
242 |
}
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marci@45
|
243 |
if (dfs.aNodeIsLeaved()) {
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marci@45
|
244 |
std::cout << "aNodeIsLeaved ";
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marci@45
|
245 |
} else {
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marci@45
|
246 |
std::cout << "aNodeIsNotLeaved ";
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marci@45
|
247 |
}
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marci@45
|
248 |
std::cout<<std::endl;
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marci@45
|
249 |
} while (!dfs.finished());
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marci@45
|
250 |
}
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marci@45
|
251 |
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marci@45
|
252 |
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marci@45
|
253 |
{
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marci@45
|
254 |
std::cout << "iterator bfs demo from node 5 with replacing \n OutEdgeIt by InEdgeIt ..." << std::endl;
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marci@45
|
255 |
ListGraph::NodeMap<bool> reached(G, false);
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marci@45
|
256 |
reached.set(t, true);
|
|
marci@45
|
257 |
std::queue<ListGraph::InEdgeIt> bfs_queue;
|
|
marci@45
|
258 |
bfs_queue.push(G.first<InEdgeIt>(t));
|
|
marci@45
|
259 |
BfsIterator1< ListGraph, ListGraph::InEdgeIt, ListGraph::NodeMap<bool> > bfs(G, bfs_queue, reached);
|
|
marci@45
|
260 |
while (!bfs.finished()) {
|
|
marci@45
|
261 |
if (InEdgeIt(bfs).valid()) {
|
|
marci@45
|
262 |
std::cout << "InEdgeIt: " << bfs;
|
|
marci@45
|
263 |
std::cout << " aNode: " << G.aNode(bfs);
|
|
marci@45
|
264 |
std::cout << " bNode: " << G.bNode(bfs) << " ";
|
|
marci@45
|
265 |
} else {
|
|
marci@45
|
266 |
std::cout << "InEdgeIt: " << "invalid";
|
|
marci@45
|
267 |
std::cout << " aNode: " << G.aNode(bfs);
|
|
marci@45
|
268 |
std::cout << " bNode: " << "invalid" << " ";
|
|
marci@45
|
269 |
}
|
|
marci@45
|
270 |
if (bfs.bNodeIsNewlyReached()) {
|
|
marci@45
|
271 |
std::cout << "bNodeIsNewlyReached ";
|
|
marci@45
|
272 |
} else {
|
|
marci@45
|
273 |
std::cout << "bNodeIsNotNewlyReached ";
|
|
marci@45
|
274 |
}
|
|
marci@45
|
275 |
if (bfs.aNodeIsExamined()) {
|
|
marci@45
|
276 |
std::cout << "aNodeIsExamined ";
|
|
marci@45
|
277 |
} else {
|
|
marci@45
|
278 |
std::cout << "aNodeIsNotExamined ";
|
|
marci@45
|
279 |
}
|
|
marci@45
|
280 |
std::cout<<std::endl;
|
|
marci@45
|
281 |
bfs.next();
|
|
marci@45
|
282 |
}
|
|
marci@45
|
283 |
}
|
|
marci@45
|
284 |
|
|
marci@45
|
285 |
|
|
marci@45
|
286 |
{
|
|
marci@45
|
287 |
std::cout << "the graph is considered as an undirected graph \n by replacing InEdgeIt by SymEdgeIt ..." << std::endl;
|
|
marci@45
|
288 |
ListGraph::NodeMap<bool> reached(G, false);
|
|
marci@45
|
289 |
reached.set(t, true);
|
|
marci@45
|
290 |
std::queue<ListGraph::SymEdgeIt> bfs_queue;
|
|
marci@45
|
291 |
bfs_queue.push(G.first<SymEdgeIt>(t));
|
|
marci@45
|
292 |
BfsIterator1< ListGraph, ListGraph::SymEdgeIt, ListGraph::NodeMap<bool> > bfs(G, bfs_queue, reached);
|
|
marci@45
|
293 |
while (!bfs.finished()) {
|
|
marci@45
|
294 |
if (SymEdgeIt(bfs).valid()) {
|
|
marci@45
|
295 |
std::cout << "SymEdgeIt: " << bfs;
|
|
marci@45
|
296 |
std::cout << " aNode: " << G.aNode(bfs);
|
|
marci@45
|
297 |
std::cout << " bNode: " << G.bNode(bfs) << " ";
|
|
marci@45
|
298 |
} else {
|
|
marci@45
|
299 |
std::cout << "SymEdgeIt: " << "invalid";
|
|
marci@45
|
300 |
std::cout << " aNode: " << G.aNode(bfs);
|
|
marci@45
|
301 |
std::cout << " bNode: " << "invalid" << " ";
|
|
marci@45
|
302 |
}
|
|
marci@45
|
303 |
if (bfs.bNodeIsNewlyReached()) {
|
|
marci@45
|
304 |
std::cout << "bNodeIsNewlyReached ";
|
|
marci@45
|
305 |
} else {
|
|
marci@45
|
306 |
std::cout << "bNodeIsNotNewlyReached ";
|
|
marci@45
|
307 |
}
|
|
marci@45
|
308 |
if (bfs.aNodeIsExamined()) {
|
|
marci@45
|
309 |
std::cout << "aNodeIsExamined ";
|
|
marci@45
|
310 |
} else {
|
|
marci@45
|
311 |
std::cout << "aNodeIsNotExamined ";
|
|
marci@45
|
312 |
}
|
|
marci@45
|
313 |
std::cout<<std::endl;
|
|
marci@45
|
314 |
bfs.next();
|
|
marci@45
|
315 |
}
|
|
marci@45
|
316 |
}
|
|
marci@45
|
317 |
|
|
marci@45
|
318 |
return 0;
|
|
marci@45
|
319 |
}
|