Compilare: user.cpp: In function ‘void ReadInput()’: user.cpp:28:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ user.cpp:30:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] double a, b; scanf("%lf%lf", &a, &b); pts.emplace_back(a, b); ^