Compilare: user.cpp: In function ‘double tg(std::pair<double, double>)’: user.cpp:9:21: warning: integer overflow in expression [-Woverflow] #define Inf (1<<31)-1 ^ user.cpp:27:20: note: in expansion of macro ‘Inf’ return Inf; ^ user.cpp:9:21: warning: integer overflow in expression [-Woverflow] #define Inf (1<<31)-1 ^ user.cpp:29:20: note: in expansion of macro ‘Inf’ return Inf-1; ^ user.cpp: In function ‘void citire()’: user.cpp:9:21: warning: integer overflow in expression [-Woverflow] #define Inf (1<<31)-1 ^ user.cpp:46:19: note: in expansion of macro ‘Inf’ mini.second = Inf; ^ user.cpp:9:21: warning: integer overflow in expression [-Woverflow] #define Inf (1<<31)-1 ^ user.cpp:47:18: note: in expansion of macro ‘Inf’ mini.first = Inf; ^ user.cpp:45:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:49:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf", &x, &y); ^ user.cpp: In function ‘int main()’: user.cpp:71:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.in","rt",stdin); ^ user.cpp:72:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.out","wt",stdout); ^