arrows.cpp: In function 'Point next(const Point&)': arrows.cpp:22: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x arrows.cpp: In function 'int main()': arrows.cpp:81: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x arrows.cpp:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result arrows.cpp:67: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result arrows.cpp:69: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result arrows.cpp:70: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result arrows.cpp:73: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result arrows.cpp:77: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result