Compilare: user.cpp: In function ‘int main()’: user.cpp:40:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,nod,mini=1<<30; muc aux; ^ user.cpp:40:33: warning: unused variable ‘aux’ [-Wunused-variable] int i,j,nod,mini=1<<30; muc aux; ^ user.cpp:42:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.cpp:45:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&v[i].x,&v[i].y,&v[i].d); ^