Eroare de compilare: main.cpp: In function 'void BellmanFord(int, const CostGraph&)': main.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < distances.size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp:39:75: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (relaxedNodes.size() && nodeUsedFrequency[relaxedNodes.front()] <= graph.size()) main.cpp:64:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < graph.size(); ++i) ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:79:29: error: 'void std::basic_ios<_CharT, _Traits>::set_rdbuf(std::basic_streambuf<_CharT, _Traits>*) [with _CharT = char; _Traits = std::char_traits<char>]' is protected within this context cin.set_rdbuf(in.rdbuf()); ^ In file included from /usr/include/c++/6/ios:44:0, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/basic_ios.h:505:7: note: declared protected here set_rdbuf(basic_streambuf<_CharT, _Traits>* __sb) ^~~~~~~~~ main.cpp:80:31: error: 'void std::basic_ios<_CharT, _Traits>::set_rdbuf(std::basic_streambuf<_CharT, _Traits>*) [with _CharT = char; _Traits = std::char_traits<char>]' is protected within this context cout.set_rdbuf(out.rdbuf()); ^ In file included from /usr/include/c++/6/ios:44:0, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/basic_ios.h:505:7: note: declared protected here set_rdbuf(basic_streambuf<_CharT, _Traits>* __sb) ^~~~~~~~~ Non zero exit status: 1