Eroare de compilare: user.cpp:6:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type ifstream cin("permutari.in"); ^ user.cpp:7:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type ofstream cout("permutari.out") ^ user.cpp:9:1: error: expected ‘,’ or ‘;’ before ‘int’ int viz[8]; ^ user.cpp:12:12: error: ISO C++ forbids declaration of ‘backt’ with no type [-fpermissive] backt(int k){ ^ user.cpp: In function ‘int backt(int)’: user.cpp:18:13: error: reference to ‘cout’ is ambiguous cout<<s[i]; ^ user.cpp:7:10: note: candidates are: <typeprefixerror>cout ofstream cout("permutari.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:20:9: error: reference to ‘cout’ is ambiguous cout<<endl;return 0; ^ user.cpp:7:10: note: candidates are: <typeprefixerror>cout ofstream cout("permutari.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:26:16: error: ‘viz’ was not declared in this scope if(viz[i]==0){ ^ user.cpp: In function ‘int main()’: user.cpp:43:5: error: reference to ‘cin’ is ambiguous cin>>n; ^ user.cpp:6:10: note: candidates are: <typeprefixerror>cin ifstream cin("permutari.in"); ^ In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp: In function ‘int backt(int)’: user.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] }