/* -*- mode: C -*- */ /* IGraph library. Copyright (C) 2010-2012 Gabor Csardi <csardi.gabor@gmail.com> 334 Harvard street, Cambridge, MA 02139 USA This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <igraph.h> int print_and_destroy(igraph_real_t value, igraph_vector_ptr_t *partitions, igraph_vector_ptr_t *cuts) { long int i, n=igraph_vector_ptr_size(partitions); printf("Value: %g\n", value); for (i=0; i<n; i++) { igraph_vector_t *vec=VECTOR(*partitions)[i]; igraph_vector_t *vec2=cuts ? VECTOR(*cuts)[i] : 0; printf("Partition: "); igraph_vector_print(vec); if (vec2) { printf("Cut: "); igraph_vector_print(vec2); } igraph_vector_destroy(vec); if (vec2) { igraph_vector_destroy(vec2); } igraph_free(vec); if (vec2) { igraph_free(vec2); } } igraph_vector_ptr_destroy(partitions); if (cuts) { igraph_vector_ptr_destroy(cuts); } return 0; } int main() { igraph_t g; igraph_vector_ptr_t partitions; igraph_vector_ptr_t cuts; igraph_real_t value; igraph_small(&g, 5, IGRAPH_DIRECTED, 0,1, 1,2, 2,3, 3,4, -1); igraph_vector_ptr_init(&partitions, 0); igraph_vector_ptr_init(&cuts, 0); igraph_all_st_mincuts(&g, &value, &cuts, &partitions, /*source=*/ 0, /*target=*/ 4, /*capacity=*/ 0); print_and_destroy(value, &partitions, &cuts); igraph_destroy(&g); /* ---------------------------------------------------------------- */ igraph_small(&g, 6, IGRAPH_DIRECTED, 0,1, 1,2, 1,3, 2,4, 3,4, 4,5, -1); igraph_vector_ptr_init(&partitions, 0); igraph_vector_ptr_init(&cuts, 0); igraph_all_st_mincuts(&g, &value, &cuts, &partitions, /*source=*/ 0, /*target=*/ 5, /*capacity=*/ 0); print_and_destroy(value, &partitions, &cuts); igraph_destroy(&g); /* ---------------------------------------------------------------- */ igraph_small(&g, 6, IGRAPH_DIRECTED, 0,1, 1,2, 1,3, 2,4, 3,4, 4,5, -1); igraph_vector_ptr_init(&partitions, 0); igraph_vector_ptr_init(&cuts, 0); igraph_all_st_mincuts(&g, &value, &cuts, &partitions, /*source=*/ 0, /*target=*/ 4, /*capacity=*/ 0); print_and_destroy(value, &partitions, &cuts); igraph_destroy(&g); /* ---------------------------------------------------------------- */ igraph_small(&g, 9, IGRAPH_DIRECTED, 0,1, 0,2, 1,3, 2,3, 1,4,4,2, 1,5,5,2, 1,6,6,2, 1,7,7,2, 1,8,8,2, -1); igraph_vector_ptr_init(&partitions, 0); igraph_vector_ptr_init(&cuts, 0); igraph_all_st_mincuts(&g, &value, &cuts, &partitions, /*source=*/ 0, /*target=*/ 3, /*capacity=*/ 0); print_and_destroy(value, &partitions, &cuts); igraph_destroy(&g); return 0; }