#include #include #include #include typedef struct directed_edge { int32_t vertex; int32_t next; } graph_edge; typedef struct directedGraph { graph_edge *edge; int32_t *start; int32_t pointer; int32_t vertex_num; int32_t edge_max_size; } graph; graph* new_graph (const int vertex_num) { graph *g = (graph *) calloc (1, sizeof (graph)); g->edge = (graph_edge *) calloc (1, sizeof (graph_edge)); g->start = (int32_t *) calloc (vertex_num, sizeof (int32_t)); g->pointer = 0; g->vertex_num = vertex_num; g->edge_max_size = 1; for (int32_t i = 0; i < vertex_num; ++i) { g->start[i] = -1; } return g; } void add_edge (graph *g, int32_t from, int32_t to) { if (g->pointer == g->edge_max_size) { g->edge_max_size *= 2; g->edge = (graph_edge *) realloc (g->edge, sizeof (graph_edge) * g->edge_max_size); } g->edge[g->pointer] = (graph_edge) {to, g->start[from]}; g->start[from] = g->pointer++; } int32_t BFS_graph (graph *g, int32_t src, int32_t *res) { int32_t *q = (int32_t *) calloc (g->vertex_num, sizeof (int32_t)); uint8_t *used = (uint8_t *) calloc (g->vertex_num, sizeof (uint8_t)); int32_t *d = (int32_t *) calloc (g->vertex_num, sizeof (int32_t)); int32_t front = 0; int32_t last = 0; used[src] = 1; q[last++] = src; while (front < last) { const int32_t v = q[front++]; for (int32_t p = g->start[v]; p != -1; p = g->edge[p].next) { const int32_t u = g->edge[p].vertex; if (!used[u]) { used[u] = 1; q[last++] = u; d[u] = d[v] + 1; } } } *res = d[q[last - 1]]; free(q); free(used); free (d); return last; } typedef int32_t i32; void run (void) { i32 n, m; scanf ("%" SCNi32 "%" SCNi32, &n, &m); graph *g = new_graph (n); while (m--) { i32 a, b; scanf ("%" SCNi32 "%" SCNi32, &a, &b); a--; b--; add_edge (g, a, b); add_edge (g, b, a); } i32 q; scanf ("%" SCNi32, &q); while (q--) { i32 a; scanf ("%" SCNi32, &a); a--; i32 dd = 0; i32 ans = BFS_graph (g, a, &dd) - 1; i32 d = 1; i32 k = 0; while (d < dd) { d *= 2; k++; } printf ("%" PRIi32 " %" PRIi32 "\n", ans, k); } } int main (void) { run (); return 0; }