gtsp/src/graph.h

#ifndef _PROJECT_GRAPH_H_
#define _PROJECT_GRAPH_H_

#include "main.h"

struct Adjacency
{
    struct Edge *edge;
    struct Node *neighbor;
};

struct Node
{
    int mark;

    int index;
    int degree;

    struct Adjacency *adj;
};

struct Edge
{
    int index;
    int weight;

    struct Node *from;
    struct Node *to;

    struct Edge *reverse;
};

struct Graph
{
    int node_count;
    int edge_count;

    struct Edge *edges;
    struct Node *nodes;

    double *x_coordinates;
    double *y_coordinates;

    struct Adjacency *adj;
};

void graph_init(struct Graph *graph);

void graph_free(struct Graph *graph);

int graph_build(
        int node_count,
        int edge_count,
        int *edges,
        int is_directed,
        struct Graph *graph);

int get_cut_edges_from_marks(
        struct Graph *graph, int *cut_edges_count, struct Edge **cut_edges);

int graph_dump(const struct Graph *graph);

#endif