Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < edges[x].size();++i) { ~~^~~~~~~~~~~~~~~~~ main.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < edges[x].size();++i) { ~~^~~~~~~~~~~~~~~~~ main.cpp:48:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < edges[x].size();++i) { ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:83:26: error: no matching function for call to 'max(long long int&, int&)' ans = max(ans,dp[0][i]); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:3: /usr/include/c++/6/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&) max(const _Tp& __a, const _Tp& __b) ^~~ /usr/include/c++/6/bits/stl_algobase.h:219:5: note: template argument deduction/substitution failed: main.cpp:83:26: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int') ans = max(ans,dp[0][i]); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:3: /usr/include/c++/6/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) max(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ /usr/include/c++/6/bits/stl_algobase.h:265:5: note: template argument deduction/substitution failed: main.cpp:83:26: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int') ans = max(ans,dp[0][i]); ^ Non zero exit status: 1