Eroare de compilare: user.cpp: In function ‘void merase(int, int)’: user.cpp:20:46: error: no matching function for call to ‘find(std::vector<int>::iterator, std::vector<int>::iterator, int&)’ v[b].erase(find(v[b].begin(),v[b].end(),a)); ^ user.cpp:20:46: note: candidate is: In file included from /usr/include/c++/4.8/bits/locale_facets.h:48:0, from /usr/include/c++/4.8/bits/basic_ios.h:37, from /usr/include/c++/4.8/ios:44, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/streambuf_iterator.h:369:5: note: template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT> >::__type std::find(std::istreambuf_iterator<_CharT>, std::istreambuf_iterator<_CharT>, const _CharT2&) find(istreambuf_iterator<_CharT> __first, ^ /usr/include/c++/4.8/bits/streambuf_iterator.h:369:5: note: template argument deduction/substitution failed: user.cpp:20:46: note: ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >’ is not derived from ‘std::istreambuf_iterator<_CharT>’ v[b].erase(find(v[b].begin(),v[b].end(),a)); ^ user.cpp: In function ‘void DFS(int)’: user.cpp:28:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[x].size();++i) if(!viz[v[x][i]]) DFS(v[x][i]); ^