Eroare de compilare: main.cpp: In function 'int32_t main()': main.cpp:44:5: error: reference to 'cin' is ambiguous cin >> n >> m; ^~~ main.cpp:36:10: note: candidates are: std::ifstream cin ifstream cin("hamilton.in"); ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:46:9: error: reference to 'cin' is ambiguous cin >> x >> y >> z; ^~~ main.cpp:36:10: note: candidates are: std::ifstream cin ifstream cin("hamilton.in"); ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:59:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<nod[j].size();k++){ ~^~~~~~~~~~~~~~ main.cpp:68:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<nod[0].size();j++){ ~^~~~~~~~~~~~~~ main.cpp:17:22: error: reference to 'cout' is ambiguous #define rc(s) return cout<<s,0 ^ main.cpp:71:5: note: in expansion of macro 'rc' rc(ans); ^~ main.cpp:37:10: note: candidates are: std::ofstream cout ofstream cout("hamilton.out"); ^~~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ Non zero exit status: 1