Eroare de compilare: main.cpp: In function 'int main()': main.cpp:14:5: error: reference to 'cin' is ambiguous cin >> n >> x >> l; ^~~ main.cpp:5:10: note: candidates are: std::ifstream cin ifstream cin("lupu.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:18:3: error: reference to 'cin' is ambiguous cin >> d >> c; ^~~ main.cpp:5:10: note: candidates are: std::ifstream cin ifstream cin("lupu.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:27:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ind < vec.size() && vec[ind].first == i) ~~~~^~~~~~~~~~~~ main.cpp:32:2: error: reference to 'cout' is ambiguous cout << rez << '\n'; ^~~~ main.cpp:6:10: note: candidates are: std::ofstream cout ofstream cout("lupu.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