diff options
author | Julian T <julian@jtle.dk> | 2020-10-12 16:26:42 +0200 |
---|---|---|
committer | Julian T <julian@jtle.dk> | 2020-10-12 16:54:48 +0200 |
commit | 4e05a55e373bd315e721d534a1711fec4c0054c5 (patch) | |
tree | 4fc0141760c2730ed79aaa4c7aa60ea45cc66cc0 /sem3/algo/mm10 | |
parent | b7f9cf43c8a9ab3400cbb30d5e1cadb0c6c2cf23 (diff) |
Moved to linux kernel inspired clang-format
Diffstat (limited to 'sem3/algo/mm10')
-rw-r--r-- | sem3/algo/mm10/bfs.c | 237 |
1 files changed, 117 insertions, 120 deletions
diff --git a/sem3/algo/mm10/bfs.c b/sem3/algo/mm10/bfs.c index 6f699f0..921340f 100644 --- a/sem3/algo/mm10/bfs.c +++ b/sem3/algo/mm10/bfs.c @@ -2,170 +2,167 @@ #include <stdlib.h> #define COL_WHITE 0 -#define COL_GRAY 1 +#define COL_GRAY 1 #define COL_BLACK 2 typedef struct list_node_t_struct { - struct list_node_t_struct *next; - void *val; + struct list_node_t_struct *next; + void *val; } list_node_t; typedef struct vertex_struct { - char ref; - int color; - int dist; - struct vertex_struct *p; - list_node_t *adj; + char ref; + int color; + int dist; + struct vertex_struct *p; + list_node_t *adj; } vertex_t; vertex_t *create_vertex(char ref) { - // Get some space TODO check for null - vertex_t *v = malloc(sizeof(vertex_t)); - - // Set values - v->ref = ref; - v->color = COL_WHITE; - v->dist = -1; - v->p = NULL; - v->adj = NULL; + // Get some space TODO check for null + vertex_t *v = malloc(sizeof(vertex_t)); + + // Set values + v->ref = ref; + v->color = COL_WHITE; + v->dist = -1; + v->p = NULL; + v->adj = NULL; } vertex_t *add_adj(vertex_t *v, vertex_t *add) { - list_node_t *oldN = v->adj; + list_node_t *oldN = v->adj; - // Create new list node - list_node_t *n = malloc(sizeof(list_node_t)); - n->val = add; - n->next = oldN; + // Create new list node + list_node_t *n = malloc(sizeof(list_node_t)); + n->val = add; + n->next = oldN; - v->adj = n; + v->adj = n; - return add; + return add; } void print_adj(vertex_t *v) { - list_node_t *n = v->adj; - printf("[ "); - while (n) { - printf("%c ", *((char *)n->val)); - n = n->next; - } - printf("]\n"); + list_node_t *n = v->adj; + printf("[ "); + while (n) { + printf("%c ", *((char *)n->val)); + n = n->next; + } + printf("]\n"); } vertex_t *vertexes[128]; void add_edge(char a, char b) { - // Does a exists - if ( vertexes[a] == NULL ) { - vertexes[a] = create_vertex(a); - } - // What about b - if ( vertexes[b] == NULL ) { - vertexes[b] = create_vertex(b); - } - - // Add edge - add_adj(vertexes[a], vertexes[b]); + // Does a exists + if (vertexes[a] == NULL) { + vertexes[a] = create_vertex(a); + } + // What about b + if (vertexes[b] == NULL) { + vertexes[b] = create_vertex(b); + } + + // Add edge + add_adj(vertexes[a], vertexes[b]); } typedef struct { - unsigned int len; - list_node_t *in; - list_node_t *out; + unsigned int len; + list_node_t *in; + list_node_t *out; } queue_t; void enqueue(queue_t *q, vertex_t *v) { - list_node_t *n = malloc(sizeof(list_node_t)); - n->val = v; - - // Add at end - list_node_t *old = q->in; - q->in = n; - if ( old ) { - old->next = n; - } - - // Make sure we have an out - if ( q->out == NULL ) { - q->out = n; - } - - q->len++; + list_node_t *n = malloc(sizeof(list_node_t)); + n->val = v; + + // Add at end + list_node_t *old = q->in; + q->in = n; + if (old) { + old->next = n; + } + + // Make sure we have an out + if (q->out == NULL) { + q->out = n; + } + + q->len++; } vertex_t *dequeue(queue_t *q) { - list_node_t *n = q->out; - if ( n == NULL ) { - return NULL; - } - vertex_t *v = (vertex_t *)n->val; - - // Move out forward - q->out = n->next; - q->len--; - - // Free node and return - free(n); - return v; + list_node_t *n = q->out; + if (n == NULL) { + return NULL; + } + vertex_t *v = (vertex_t *)n->val; + + // Move out forward + q->out = n->next; + q->len--; + + // Free node and return + free(n); + return v; } void bfs(vertex_t *s) { - queue_t q = {0, NULL, NULL }; - enqueue(&q, s); - s->dist = 0; - - while ( q.len ) { - vertex_t *u = dequeue(&q); - list_node_t *n = u->adj; - while ( n ) { - vertex_t *v = (vertex_t *)n->val; - if ( v->color == COL_WHITE ) { - v->color = COL_GRAY; - v->dist = u->dist + 1; - v->p = u; - enqueue(&q, v); - } - n = n->next; - } - u->color = COL_BLACK; - } - + queue_t q = { 0, NULL, NULL }; + enqueue(&q, s); + s->dist = 0; + + while (q.len) { + vertex_t *u = dequeue(&q); + list_node_t *n = u->adj; + while (n) { + vertex_t *v = (vertex_t *)n->val; + if (v->color == COL_WHITE) { + v->color = COL_GRAY; + v->dist = u->dist + 1; + v->p = u; + enqueue(&q, v); + } + n = n->next; + } + u->color = COL_BLACK; + } } int main() { - add_edge('s', 'd'); // S - add_edge('s', 'c'); - add_edge('s', 'a'); - add_edge('d', 'e'); // D - add_edge('d', 'c'); - add_edge('e', 'g'); // E - add_edge('e', 'f'); - add_edge('c', 's'); // C - add_edge('c', 'g'); - add_edge('g', 'f'); // G - - //print_adj(vertexes['d']); - bfs(vertexes['s']); - - char c; - while ( (c = getchar()) != EOF) { - if ( vertexes[c] != NULL ) { - print_adj(vertexes[c]); - printf("%d\n", vertexes[c]->dist); - } else if (c == 10) { - } else { - printf("Not found\n"); - } - } - - + add_edge('s', 'd'); // S + add_edge('s', 'c'); + add_edge('s', 'a'); + add_edge('d', 'e'); // D + add_edge('d', 'c'); + add_edge('e', 'g'); // E + add_edge('e', 'f'); + add_edge('c', 's'); // C + add_edge('c', 'g'); + add_edge('g', 'f'); // G + + //print_adj(vertexes['d']); + bfs(vertexes['s']); + + char c; + while ((c = getchar()) != EOF) { + if (vertexes[c] != NULL) { + print_adj(vertexes[c]); + printf("%d\n", vertexes[c]->dist); + } else if (c == 10) { + } else { + printf("Not found\n"); + } + } } |