Compilare: user.cpp: In function ‘int interior_poligon(std::pair<int, int>, std::vector<std::pair<int, int> >)’: user.cpp:142:6: warning: unused variable ‘nr’ [-Wunused-variable] int nr,i,lim,arie; ^ user.cpp: In function ‘double dijkstra(int)’: user.cpp:196:8: warning: ‘nod’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i,nod; ^ user.cpp: In function ‘int main()’: user.cpp:255:2: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(sol==INF) ^