Eroare de compilare: user.cpp:1:20: warning: extra tokens at end of #include directive [enabled by default] #include <iostream>; ^ user.cpp:3:14: error: variable ‘std::ifstream cin’ has initializer but incomplete type ifstream cin("permut.in"); ^ user.cpp:4:18: error: variable ‘std::ofstream cout’ has initializer but incomplete type ofstream cout("permut.out"); ^ user.cpp: In function ‘void afisare(int)’: user.cpp:16:9: error: reference to ‘cout’ is ambiguous cout<<st[i]<<" "; ^ user.cpp:4:14: note: candidates are: <typeprefixerror>cout ofstream cout("permut.out"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^ user.cpp:17:5: error: reference to ‘cout’ is ambiguous cout<<endl; ^ user.cpp:4:14: note: candidates are: <typeprefixerror>cout ofstream cout("permut.out"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^ user.cpp: In function ‘void back(int)’: user.cpp:25:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(valid(p)) ^ user.cpp: In function ‘int main()’: user.cpp:34:5: error: reference to ‘cout’ is ambiguous cout<<"n="; ^ user.cpp:4:14: note: candidates are: <typeprefixerror>cout ofstream cout("permut.out"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^ user.cpp:35:5: error: reference to ‘cin’ is ambiguous cin>>n; ^ user.cpp:3:11: note: candidates are: <typeprefixerror>cin ifstream cin("permut.in");