Eroare de compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] main(){std::ofstream f("fetite.in");std::ifstream f("fetite.out");unsigned long long N,R,I=2;for(cin>>N;I<=N;I*=2)R=N-I;cout<<R*2+1;} ^ main.cpp: In function 'int main()': main.cpp:2:52: error: conflicting declaration 'std::ifstream f' main(){std::ofstream f("fetite.in");std::ifstream f("fetite.out");unsigned long long N,R,I=2;for(cin>>N;I<=N;I*=2)R=N-I;cout<<R*2+1;} ^ main.cpp:2:22: note: previous declaration as 'std::ofstream f' main(){std::ofstream f("fetite.in");std::ifstream f("fetite.out");unsigned long long N,R,I=2;for(cin>>N;I<=N;I*=2)R=N-I;cout<<R*2+1;} ^ main.cpp:2:98: error: 'cin' was not declared in this scope main(){std::ofstream f("fetite.in");std::ifstream f("fetite.out");unsigned long long N,R,I=2;for(cin>>N;I<=N;I*=2)R=N-I;cout<<R*2+1;} ^~~ main.cpp:2:121: error: 'cout' was not declared in this scope main(){std::ofstream f("fetite.in");std::ifstream f("fetite.out");unsigned long long N,R,I=2;for(cin>>N;I<=N;I*=2)R=N-I;cout<<R*2+1;} ^~~~ Non zero exit status: 1