urgenta.cpp:11: error: '>>' should be '> >' within a nested template argument list urgenta.cpp: In function 'void kruskal()': urgenta.cpp:54: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp:54: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp:45: warning: unused variable 'nm' urgenta.cpp: In function 'int main()': urgenta.cpp:72: warning: 'auto' will change meaning in C++0x; please remove it urgenta.cpp:72: error: expected initializer before ':' token urgenta.cpp:74: error: could not convert 'f.std::basic_ifstream<_CharT, _Traits>::close [with _CharT = char, _Traits = std::char_traits<char>]()' to 'bool' urgenta.cpp:75: error: expected ')' before ';' token