Eroare de compilare: user.cpp:2:14: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] int T,N;main(){std::ifstream i("sticle.in");std::ofstream o("sticle.out")i>>T;for(;T--;)i>>N,o<<((int)log2(N)+!!(~-N&N))<<"\n";} ^ user.cpp: In function ‘int main()’: user.cpp:2:74: error: expected ‘,’ or ‘;’ before ‘i’ int T,N;main(){std::ifstream i("sticle.in");std::ofstream o("sticle.out")i>>T;for(;T--;)i>>N,o<<((int)log2(N)+!!(~-N&N))<<"\n";} ^