pixy.cpp: In function 'void bfs()': pixy.cpp:21: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x pixy.cpp:21: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x pixy.cpp:29: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x pixy.cpp:29: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x pixy.cpp: In function 'int main()': pixy.cpp:58: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result pixy.cpp:59: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result pixy.cpp:63: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result pixy.cpp:67: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result pixy.cpp:68: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result