alpar@921
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#include<lemon/list_graph.h>
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alpar@711
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alpar@711
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#include"bench_tools.h"
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alpar@699
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alpar@921
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using namespace lemon;
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alpar@699
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alpar@699
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///Makes a full graph by adding and deleting a lot of edges;
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alpar@699
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alpar@699
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///\param n Number of nodes.
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alpar@699
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///\param rat The funcion will make \f$rat\timesn^2\f$ edge addition and
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alpar@699
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///\f$(rat-1)\timesn^2\f$ deletion.
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alpar@699
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///\param p Tuning parameters.
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alpar@699
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///\warning \c rat, \c p, and \c n must be pairwise relative primes.
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alpar@699
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template <class Graph>
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alpar@699
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void makeFullGraph(int n, int rat, int p)
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alpar@699
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{
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alpar@1756
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GRAPH_TYPEDEFS(typename Graph);
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alpar@699
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alpar@699
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Graph G;
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alpar@699
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alpar@708
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// Node nodes[n];
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alpar@708
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std::vector<Node> nodes(n);
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alpar@699
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for(int i=0;i<n;i++) nodes[i]=G.addNode();
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alpar@699
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alpar@708
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//Edge equ[rat];
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alpar@708
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std::vector<Edge> equ(rat);
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alpar@699
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alpar@718
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long long int count;
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alpar@699
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alpar@699
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for(count=0;count<rat;count++) {
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alpar@699
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equ[count%rat]=G.addEdge(nodes[(count*p)%n],nodes[(count*p/n)%n]);
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}
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alpar@699
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for(;(count%rat)||((count*p)%n)||((count*p/n)%n);count++) {
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alpar@699
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// if(!(count%1000000)) fprintf(stderr,"%d\r",count);
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alpar@699
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if(count%rat) G.erase(equ[count%rat]);
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alpar@699
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equ[count%rat]=G.addEdge(nodes[(count*p)%n],nodes[(count*p/n)%n]);
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alpar@699
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}
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alpar@718
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// std::cout << "Added " << count
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alpar@718
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// << " ( " << n << "^2 * " << rat << " ) edges\n";
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alpar@718
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alpar@718
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alpar@699
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// for(int i=0;1;i++) ;
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alpar@699
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}
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alpar@699
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alpar@699
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int main()
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alpar@699
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{
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alpar@921
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lemon::Timer T;
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alpar@699
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makeFullGraph<ListGraph>(nextPrim(1000),nextPrim(300),nextPrim(100));
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alpar@718
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alpar@718
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PrintTime("BIG",T);
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alpar@1847
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T.restart();
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alpar@699
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makeFullGraph<ListGraph>(nextPrim(100),nextPrim(30000),nextPrim(150));
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alpar@718
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alpar@718
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PrintTime("SMALL",T);
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alpar@699
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}
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