#include #include #include #include #include typedef struct pairingHeapNode{ struct pairingHeapNode *next; struct pairingHeapNode *child; unsigned long long int val[]; } heapNode; typedef struct pairingHeap{ heapNode *root; int heapSize; size_t size; int (*cmp)(const void *,const void *); } heap; heapNode* newHeapNode(const void *v,const size_t size){ heapNode *res=(heapNode *)malloc(sizeof(heapNode)+size); memcpy(res->val,v,size); res->next=NULL; res->child=NULL; return res; } void freeAllNode(heapNode *t){ if(t==NULL) return; freeAllNode(t->next); freeAllNode(t->child); free(t); return; } heap* newHeap(const size_t size,int (*cmp)(const void *,const void *)){ heap *res=(heap *)malloc(sizeof(heap)); res->root=NULL; res->heapSize=0; res->size=size; res->cmp=cmp; return res; } void freeHeap(heap *h){ freeAllNode(h->root); free(h); return; } int getSize(const heap *h){ return h->heapSize; } int isEmpty(const heap *h){ return getSize(h)==0; } heapNode* meld(heapNode *a,heapNode *b,int (*cmp)(const void *a,const void *b)){ if(a==NULL) return b; if(b==NULL) return a; if(cmp(a->val,b->val)<=0){ b->next=a->child; a->child=b; return a; } else { a->next=b->child; b->child=a; return b; } } void push(heap *h,const void *v){ heapNode *p=newHeapNode(v,h->size); h->heapSize++; h->root=meld(h->root,p,h->cmp); return; } void pop(heap *h,void *v){ if(v!=NULL) memcpy(v,h->root->val,h->size); heapNode *lst=h->root->child; int (*cmp)(const void *a,const void *b)=h->cmp; free(h->root); h->heapSize--; heapNode *r=NULL; while(lst!=NULL && lst->next!=NULL){ heapNode *a=lst; heapNode *b=lst->next; heapNode *next=lst->next->next; a->next=b->next=NULL; r=meld(r,meld(a,b,cmp),cmp); lst=next; } if(lst!=NULL) r=meld(r,lst,cmp); h->root=r; return; } void top(const heap *h,void *v){ memcpy(v,h->root->val,h->size); return; } typedef struct directed_edge { int32_t vertex; int32_t cost; int32_t next; } graph_edge; typedef struct directedGraph { graph_edge *edge; int32_t *start; int32_t pointer; int32_t vertex_num; int32_t max_size; } graph; graph* newGraph (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->max_size = 1; for (int32_t i = 0; i < vertex_num; ++i) { g->start[i] = -1; } return g; } void freeGraph (graph *g) { free (g->edge); free (g->start); free (g); return; } void addEdge (graph *g, int32_t from, int32_t to, int32_t cost) { if (g->pointer == g->max_size) { g->max_size *= 2; g->edge = (graph_edge *) realloc (g->edge, sizeof (graph_edge) * g->max_size); } g->edge[g->pointer] = (graph_edge) {to, cost, g->start[from]}; g->start[from] = g->pointer++; } typedef int32_t i32; typedef int64_t i64; typedef struct node { i32 v; i64 d; } node; int cmpNode (const void *a, const void *b) { i64 d = ((node *)a)->d - ((node *)b)->d; return d == 0 ? 0 : d < 0 ? -1 : 1; } void run (void) { i32 n, m; scanf("%" SCNi32 "%" SCNi32, &n, &m); graph *g = newGraph (2 * n); while (m--) { i32 a, b, c; scanf("%" SCNi32 "%" SCNi32 "%" SCNi32, &a, &b, &c); a--; b--; addEdge (g, a, b, c); addEdge (g, b, a, c); addEdge (g, a + n, b + n, c); addEdge (g, b + n, a + n, c); addEdge (g, a, b + n, 0); addEdge (g, b, a + n, 0); } i64 *dp = (i64 *) calloc (2 * n, sizeof (i64)); uint8_t *used = (uint8_t *) calloc (2 * n, sizeof (uint8_t)); for (i32 i = 1; i < n; ++i) { dp[i] = (i64) 1000000000 * n; dp[i + n] = dp[i]; } heap *h = newHeap (sizeof (node), cmpNode); push (h, &((node){0, 0})); while (!isEmpty (h)) { node t; pop (h, &t); const i32 v = t.v; if (used[v]) continue; used[v] = 1; for (i32 p = g->start[v]; p != -1; p = g->edge[p].next) { i32 u = g->edge[p].vertex; i64 d = t.d + g->edge[p].cost; if (d >= dp[u]) continue; dp[u] = d; push (h, &((node){u, d})); } } for (i32 i = 0; i < n; ++i) { printf("%" PRIi64 "\n", dp[i] + dp[i + n]); } } int main (void) { run (); return 0; }