Eroare de compilare: main.c:14:1: error: unknown type name 'BBTree_Node' 14 | BBTree_Node* make_external_node(int value) | ^~~~~~~~~~~ main.c: In function 'make_external_node': main.c:16:5: error: unknown type name 'BBTree_Node' 16 | BBTree_Node *node = (BBTree_Node *) malloc(sizeof(*node)); | ^~~~~~~~~~~ main.c:16:26: error: 'BBTree_Node' undeclared (first use in this function) 16 | BBTree_Node *node = (BBTree_Node *) malloc(sizeof(*node)); | ^~~~~~~~~~~ main.c:16:26: note: each undeclared identifier is reported only once for each function it appears in main.c:16:39: error: expected expression before ')' token 16 | BBTree_Node *node = (BBTree_Node *) malloc(sizeof(*node)); | ^ main.c:18:9: error: request for member 'bparent' in something not a structure or union 18 | node->bparent = NULL; | ^~ main.c:19:9: error: request for member 'bleft' in something not a structure or union 19 | node->bleft = node->bright = node->btail = node->bhead = node; | ^~ main.c:19:23: error: request for member 'bright' in something not a structure or union 19 | node->bleft = node->bright = node->btail = node->bhead = node; | ^~ main.c:19:38: error: request for member 'btail' in something not a structure or union 19 | node->bleft = node->bright = node->btail = node->bhead = node; | ^~ main.c:19:52: error: request for member 'bhead' in something not a structure or union 19 | node->bleft = node->bright = node->btail = node->bhead = node; | ^~ main.c:20:9: error: request for member 'netcost' in something not a structure or union 20 | node->netcost = node->netmin = -1; | ^~ main.c:20:25: error: request for member 'netmin' in something not a structure or union 20 | node->netcost = node->netmin = -1; | ^~ main.c:21:9: error: request for member 'external' in something not a structure or union 21 | node->external = 1; | ^~ main.c:22:9: error: request for member 'reversed' in something not a structure or union 22 | node->reversed = 0; | ^~ main.c:23:9: error: request for member 'value' in something not a structure or union 23 | node->value = value; | ^~ main.c:24:9: error: request for member 'wt' in something not a structure or union 24 | node->wt = 1; | ^~ main.c:25:9: error: request for member 'dparent' in something not a structure or union 25 | node->dparent = NULL; | ^~ Non zero exit status: 1