Compilare: user.cpp:3:29: warning: integer overflow in expression [-Woverflow] #define INF ( ( 1 << 31 ) - 1 ) ^ user.cpp:13:14: note: in expansion of macro ‘INF’ int MinCol = INF, MinLine = INF, MaxCol, MaxLine; ^ user.cpp:3:29: warning: integer overflow in expression [-Woverflow] #define INF ( ( 1 << 31 ) - 1 ) ^ user.cpp:13:29: note: in expansion of macro ‘INF’ int MinCol = INF, MinLine = INF, MaxCol, MaxLine; ^ user.cpp: In function ‘int main()’: user.cpp:18:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &T, &N); ^ user.cpp:24:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &X, &Y); ^ user.cpp:36:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &X0, &Y0); ^ user.cpp:39:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &X, &Y); ^