Eroare de compilare: main.cpp: In function 'int main()': main.cpp:34:5: error: reference to 'cin' is ambiguous cin>>a>>b; ^~~ main.cpp:26:10: note: candidates are: std::ifstream cin ifstream cin("lgput.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:41:5: error: reference to 'cout' is ambiguous cout<<sol; ^~~~ main.cpp:27:10: note: candidates are: std::ofstream cout ofstream cout("lgput.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