Compilare: user.cpp: In function ‘void _Write()’: user.cpp:46:35: warning: format ‘%lf’ expects argument of type ‘double’, but argument 2 has type ‘std::pair<double, double>’ [-Wformat=] printf("%lf %lf\n", Sol[i]); ^ user.cpp:46:35: warning: format ‘%lf’ expects a matching ‘double’ argument [-Wformat=] user.cpp: In function ‘void _Read()’: user.cpp:27:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.in","r", stdin); ^ user.cpp:29:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:31:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf", &Punct[i].X, &Punct[i].Y); ^ user.cpp: In function ‘void _Write()’: user.cpp:42:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.out", "w", stdout); ^