Compilare: user.cpp: In function ‘int main()’: user.cpp:40:31: warning: format ‘%lf’ expects argument of type ‘double*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%lf%lf", &x[i], &y[i]); ^ user.cpp:40:31: warning: format ‘%lf’ expects argument of type ‘double*’, but argument 3 has type ‘int*’ [-Wformat=] user.cpp:37:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &d); ^ user.cpp:40:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &x[i], &y[i]); ^