Abdelrahman Said
109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
/*
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igraph library.
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Copyright (C) 2006-2012 Gabor Csardi <csardi.gabor@gmail.com>
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334 Harvard street, Cambridge, MA 02139 USA
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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#include <igraph.h>
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int main(void) {
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igraph_t g;
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igraph_real_t flow;
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igraph_vector_t capacity;
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igraph_int_t source, target;
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FILE *infile;
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igraph_maxflow_stats_t stats;
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/* Initialize the library. */
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igraph_setup();
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igraph_vector_init(&capacity, 0);
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/***************/
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infile = fopen("ak-4102.max", "r");
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igraph_read_graph_dimacs_flow(
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&g, infile, 0, 0, &source, &target, &capacity, IGRAPH_DIRECTED);
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fclose(infile);
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igraph_maxflow_value(&g, &flow, source, target, &capacity, &stats);
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if (flow != 8207) {
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return 1;
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}
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igraph_destroy(&g);
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/***************/
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/* /\***************\/ */
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/* infile=fopen("ak-8198.max", "r"); */
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/* igraph_read_graph_dimacs_flow(&g, infile, 0, 0, &source, &target, &capacity, */
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/* IGRAPH_DIRECTED); */
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/* fclose(infile); */
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/* t=timer(); */
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/* igraph_maxflow_value(&g, &flow, source, target, &capacity, &stats); */
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/* t=timer()-t; */
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/* printf("8198: %g (time %.10f)\n", flow, t); */
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/* igraph_destroy(&g); */
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/* /\***************\/ */
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/* /\***************\/ */
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/* infile=fopen("ak-16390.max", "r"); */
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/* igraph_read_graph_dimacs_flow(&g, infile, 0, 0, &source, &target, &capacity, */
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/* IGRAPH_DIRECTED); */
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/* fclose(infile); */
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/* t=timer(); */
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/* igraph_maxflow_value(&g, &flow, source, target, &capacity, &stats); */
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/* t=timer()-t; */
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/* printf("16390: %g (time %.10f)\n", flow, t); */
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/* igraph_destroy(&g); */
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/* /\***************\/ */
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/* /\***************\/ */
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/* infile=fopen("ak-32774.max", "r"); */
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/* igraph_read_graph_dimacs_flow(&g, infile, 0, 0, &source, &target, &capacity, */
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/* IGRAPH_DIRECTED); */
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/* fclose(infile); */
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/* t=timer(); */
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/* igraph_maxflow_value(&g, &flow, source, target, &capacity, &stats); */
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/* t=timer()-t; */
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/* printf("32774: %g (time %.10f)\n", flow, t); */
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/* igraph_destroy(&g); */
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/* /\***************\/ */
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/* /\***************\/ */
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/* infile=fopen("ak-65542.max", "r"); */
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/* igraph_read_graph_dimacs_flow(&g, infile, 0, 0, &source, &target, &capacity, */
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/* IGRAPH_DIRECTED); */
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/* fclose(infile); */
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/* t=timer(); */
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/* igraph_maxflow_value(&g, &flow, source, target, &capacity, &stats); */
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/* t=timer()-t; */
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/* printf("65542: %g (time %.10f)\n", flow, t); */
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/* igraph_destroy(&g); */
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/* /\***************\/ */
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igraph_vector_destroy(&capacity);
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return 0;
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}
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