alpar@2391: /* -*- C++ -*-
alpar@2391:  *
alpar@2391:  * This file is a part of LEMON, a generic C++ optimization library
alpar@2391:  *
alpar@2391:  * Copyright (C) 2003-2007
alpar@2391:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@2391:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@2391:  *
alpar@2391:  * Permission to use, modify and distribute this software is granted
alpar@2391:  * provided that this copyright notice appears in all copies. For
alpar@2391:  * precise terms see the accompanying LICENSE file.
alpar@2391:  *
alpar@2391:  * This software is provided "AS IS" with no warranty of any kind,
alpar@2391:  * express or implied, and with no claim as to its suitability for any
alpar@2391:  * purpose.
alpar@2391:  *
alpar@2391:  */
alpar@2391: 
deba@2341: #include <lemon/list_graph.h>
deba@2341: 
deba@2341: #include <lemon/hao_orlin.h>
deba@2341: #include <lemon/nagamochi_ibaraki.h>
deba@2341: #include <lemon/time_measure.h>
deba@2341: 
deba@2341: using namespace lemon;
deba@2341: 
deba@2341: #include "min_cut_graphs.h"
deba@2341: 
deba@2341: 
deba@2341: void testRegUGraph();
deba@2341: void testNoiUGraph();
deba@2341: void testBikeWheelUGraph();
deba@2341: 
deba@2341: int main() {
deba@2341:   testRegUGraph();
deba@2341:   testNoiUGraph();
deba@2341:   testBikeWheelUGraph();
deba@2341:   return 0;
deba@2341: }
deba@2341: 
deba@2341: //#define int long long
deba@2341: 
deba@2341: 
deba@2341: int cutValue(const ListUGraph& g, const ListUGraph::UEdgeMap<int>& c,
deba@2341:            const ListUGraph::NodeMap<bool>& n) {
deba@2341:   int v = 0;
deba@2341:   for (ListUGraph::UEdgeIt e(g); e != INVALID; ++e) {
deba@2341:     if (n[g.source(e)] != n[g.target(e)]) {
deba@2341:       v += c[e];
deba@2341:     }
deba@2341:   }
deba@2341:   return v;
deba@2341: }
deba@2341: 
deba@2341: int cutSize(const ListUGraph& g, const ListUGraph::NodeMap<bool>& nm) {
deba@2341:   int m = 0;
deba@2341:   for (ListUGraph::NodeIt n(g); n != INVALID; ++n) {
deba@2341:     if (nm[n]) {
deba@2341:       ++m;
deba@2341:     }
deba@2341:   }
deba@2341:   return m;
deba@2341: }
deba@2341: 
deba@2341: int testNI(const ListUGraph& g, const ListUGraph::UEdgeMap<int>& c) {
deba@2341:   TimeReport tr("Nagamochi-Ibaraki : ");
deba@2341:   NagamochiIbaraki<ListUGraph, ListUGraph::UEdgeMap<int> > alg(g, c);
deba@2341:   alg.run();
deba@2341:   ListUGraph::NodeMap<bool> n(g);
deba@2341:   alg.minCut(n);
deba@2341:   std::cout << "Check : " << cutValue(g, c, n) << ' '
deba@2341:             << cutSize(g, n) << std::endl;
deba@2341:   return alg.minCut();
deba@2341: }
deba@2341: 
deba@2341: int testHO(const ListUGraph& g, const ListUGraph::UEdgeMap<int>& c) {
deba@2341:   TimeReport tr("Hao-Orlin : ");
deba@2341:   HaoOrlin<ListUGraph, ListUGraph::UEdgeMap<int> > alg(g, c);
deba@2341:   alg.init();
deba@2341:   alg.calculateOut();
deba@2341:   ListUGraph::NodeMap<bool> n(g);
deba@2341:   alg.minCut(n);
deba@2341:   std::cout << "Check : " << cutValue(g, c, n) << ' '
deba@2341:             << cutSize(g, n) << std::endl;
deba@2341:   return alg.minCut();
deba@2341: }
deba@2341: 
deba@2341: void testBikeWheelUGraph(int n) {
deba@2341:   ListUGraph g;
deba@2341:   ListUGraph::UEdgeMap<int> c(g);
deba@2341:   genBikeWheelUGraph(g, c, n);
deba@2341:   std::cout << "Node number : " << n << std::endl;
deba@2341:   std::cout << "Hao-Orlin : " << testHO(g, c) << std::endl;
deba@2341:   std::cout << "Nagamochi-Ibaraki : " << testNI(g, c) << std::endl;
deba@2341: }
deba@2341: 
deba@2341: void testBikeWheelUGraph() {
deba@2341:   std::cout << "BikeWheelUGraph : " << std::endl;
deba@2341:   for (int k = 10; k <= 13; ++k) {
deba@2341:     int n = 1 << k;
deba@2341:     testBikeWheelUGraph(n);
deba@2341:   }
deba@2341: }
deba@2341: 
deba@2341: void testNoiUGraph(int n, int d, int k, int p) {
deba@2341:   ListUGraph g;
deba@2341:   ListUGraph::UEdgeMap<int> c(g);
deba@2341:   genNoiUGraph(g, c, n, d, k, p);
deba@2341:   std::cout << "Node number : " << n << std::endl;
deba@2341:   std::cout << "Density : " << d << std::endl;
deba@2341:   std::cout << "Tight components : " << k << std::endl;
deba@2341:   std::cout << "Scale : " << p << std::endl;
deba@2341:   std::cout << "Hao-Orlin : " << testHO(g, c) << std::endl;
deba@2341:   std::cout << "Nagamochi-Ibaraki : " << testNI(g, c) << std::endl;
deba@2341: }
deba@2341: 
deba@2341: 
deba@2341: void testNoiUGraph() {
deba@2341:   std::cout << "NoiUGraph : " << std::endl; 
deba@2341:   std::cout << "Serial 1 : " << std::endl;
deba@2341:   for (int n = 300; n <= 1000; n += 100) {
deba@2341:     testNoiUGraph(n, 50, 1, n);
deba@2341:   }
deba@2341:   std::cout << "Serial 2 : " << std::endl;
deba@2341:   for (int n = 300; n <= 1000; n += 100) {
deba@2341:     testNoiUGraph(n, 50, 2, n);
deba@2341:   }
deba@2341:   std::cout << "Serial 3 : " << std::endl;
deba@2341:   int da3[] = { 5, 10, 25, 50, 75, 100 };
deba@2341:   int dn3 = sizeof(da3) / sizeof(da3[0]);
deba@2341:   for (int d = 0; d < dn3; ++d) {
deba@2341:     testNoiUGraph(1000, da3[d], 1, 1000);
deba@2341:   }
deba@2341:   std::cout << "Serial 4 : " << std::endl;
deba@2341:   for (int d = 0; d < dn3; ++d) {
deba@2341:     testNoiUGraph(1000, da3[d], 2, 1000);
deba@2341:   }
deba@2341:   std::cout << "Serial 5 : " << std::endl;
deba@2341:   int ka5[] = {1, 2, 3, 5, 7, 10, 20, 30, 33, 35, 
deba@2341:                40, 50, 100, 200, 300, 400, 500};
deba@2341:   int kn5 = sizeof(ka5) / sizeof(ka5[0]);
deba@2341:   for (int k = 0; k < kn5; ++k) {
deba@2341:     testNoiUGraph(1000, 50, ka5[k], 1000);
deba@2341:   }
deba@2341:   std::cout << "Serial 6 : " << std::endl;
deba@2341:   int pa6[] = { 5000, 2000, 1000, 500, 250, 100, 50, 10, 1};
deba@2341:   int pn6 = sizeof(pa6) / sizeof(pa6[0]);
deba@2341:   for (int p = 0; p < pn6; ++p) {
deba@2341:     testNoiUGraph(1000, 50, 2, pa6[p]);
deba@2341:   }  
deba@2341:   
deba@2341: }
deba@2341: 
deba@2341: void testRegUGraph(int n, int d) {
deba@2341:   ListUGraph g;
deba@2341:   ListUGraph::UEdgeMap<int> c(g);
deba@2341:   genRegUGraph(g, c, n, d);
deba@2341:   std::cout << "Node number : " << n << std::endl;
deba@2341:   std::cout << "Number of cycles : " << d << std::endl;
deba@2341:   std::cout << "Hao-Orlin : " << testHO(g, c) << std::endl;
deba@2341:   std::cout << "Nagamochi-Ibaraki : " << testNI(g, c) << std::endl;
deba@2341: }
deba@2341: 
deba@2341: void testRegUGraph() {
deba@2341:   std::cout << "RegUGraph : " << std::endl; 
deba@2341:   std::cout << "Serial 1 : " << std::endl;
deba@2341:   int da1[] = { 1, 3, 10, 33, 100, 333, 1000};
deba@2341:   int dn1 = sizeof(da1) / sizeof(da1[0]);
deba@2341:   for (int d = 0; d < dn1; ++d) {
deba@2341:     testRegUGraph(1001, da1[d]);
deba@2341:   }
deba@2341:   std::cout << "Serial 2 : " << std::endl;
deba@2341:   int na2[] = { 50, 100, 200, 400, 800};
deba@2341:   int nn2 = sizeof(na2) / sizeof(na2[0]);
deba@2341:   for (int n = 0; n < nn2; ++n) {
deba@2341:     testRegUGraph(na2[n], 50);
deba@2341:   }
deba@2341:   std::cout << "Serial 3 : " << std::endl;
deba@2341:   for (int n = 8; n <= 14; ++n) {
deba@2341:     testRegUGraph(1 << n, 2);
deba@2341:   }
deba@2341:   std::cout << "Serial 4 : " << std::endl;
deba@2341:   for (int n = 7; n <= 11; ++n) {
deba@2341:     testRegUGraph(1 << n, 1 << (n - 4));
deba@2341:   }  
deba@2341: }
deba@2341: