ubuntzei.cpp: In function 'void dijk(int)': ubuntzei.cpp:34: warning: comparison between signed and unsigned integer expressions ubuntzei.cpp: In function 'int main()': ubuntzei.cpp:59: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x ubuntzei.cpp:59: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x ubuntzei.cpp:60: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x ubuntzei.cpp:60: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x