/* * Private Heap Functions */ static void fh_deleteel(struct fibheap *h, struct fibheap_el *x) { void *data; int key; data = x->fhe_data; key = x->fhe_key; if (!h->fh_keys) fh_replacedata(h, x, h->fh_neginf); else fh_replacekey(h, x, INT_MIN); if (fh_extractminel(h) != x) { /* * XXX - This should never happen as fh_replace should set it * to min. */ abort(); } x->fhe_data = data; x->fhe_key = key; }
// Replaces the key for a given node Coordinate replaceKeyInHeap(FibHeap * heap, FibHeapNode * node, Coordinate newKey) { return fh_replacekey(heap, node, newKey); }
int main(void) { struct fibheap *a; void *arr[10]; int i; a = fh_makekeyheap(); for (i=1 ; i < 8 ; i++) { arr[i]= fh_insertkey(a,0,(void *)i); printf("adding: 0 %d \n",i); } printf(" \n"); fh_replacekey(a, arr[1],-2); fh_replacekey(a, arr[4],-3); fh_replacekey(a, arr[7],-5); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[3],-2); fh_replacekey(a, arr[6],-1); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[1],-9); fh_replacekey(a, arr[5],-3); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[2],-4); fh_replacekey(a, arr[5],-5); fh_replacekey(a, arr[6],-3); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[2],-6); fh_replacekey(a, arr[6],-6); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %d\n\n", (int)fh_extractmin(a)); fh_deleteheap(a); return 0; }
int main(void) { struct fibheap *a; void *arr[10]; int i; a = fh_makekeyheap(); for (i=1 ; i < 10 ; i++) { arr[i]= fh_insertkey(a,0,int_to_pointer(i)); printf("adding: 0 %d \n",i); } printf(" \n"); fh_replacekey(a, arr[1],-38); fh_replacekey(a, arr[7],-34); printf("wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); fh_replacekey(a, arr[2],-55); fh_replacekey(a, arr[5],-56); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); fh_replacekey(a, arr[4],-1); fh_replacekey(a, arr[2],-102); fh_replacekey(a, arr[6],-1); fh_replacekey(a, arr[9],-1); fh_replacekey(a, arr[8],-4); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); fh_replacekey(a, arr[3],-74); fh_replacekey(a, arr[8],-55); fh_replacekey(a, arr[4],-2); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); fh_replacekey(a, arr[4],-3); fh_replacekey(a, arr[6],-2); fh_replacekey(a, arr[7],-99); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); fh_replacekey(a, arr[6],-3); fh_replacekey(a, arr[4],-4); fh_replacekey(a, arr[8],-94); fh_replacekey(a, arr[9],-2); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); fh_replacekey(a, arr[6],-4); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); /*fh_replacekey(a, arr[9],-3);*/ printf("Wert(minkey) %d\n",fh_minkey(a)); printf("Knoten: %lld\n\n", pointer_to_ll(fh_extractmin(a))); /*fh_replacekey(a, arr[9],-49);*/ fh_deleteheap(a); return 0; }
int main(void) { struct fibheap *a; void *arr[10]; int i; a = fh_makekeyheap(); for (i=1 ; i < 10 ; i++) { arr[i]= fh_insertkey(a,0,(void *)i); printf("adding: 0 %d \n",i); } printf(" \n"); fh_replacekey(a, arr[1],-1); fh_replacekey(a, arr[6],-1); fh_replacekey(a, arr[4],-1); fh_replacekey(a, arr[2],-1); fh_replacekey(a, arr[8],-1); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[7],-33); /* -> node 7 becomes root node, but is still pointed to by node 6 */ fh_replacekey(a, arr[4],-36); fh_replacekey(a, arr[3],-1); fh_replacekey(a, arr[9],-81); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[6],-68); fh_replacekey(a, arr[2],-69); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[1],-52); fh_replacekey(a, arr[3],-2); fh_replacekey(a, arr[4],-120); fh_replacekey(a, arr[5],-48); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[3],-3); fh_replacekey(a, arr[5],-63); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[5],-110); fh_replacekey(a, arr[7],-115); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[5],-188); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_replacekey(a, arr[3],-4); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); printf("value(minkey) %d\n",fh_minkey(a)); printf("id: %d\n\n", (int)fh_extractmin(a)); fh_deleteheap(a); return 0; }