Compilare: user.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ user.cpp:2:11: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main(int a){std::string v[]={"Robert Tarjan","Leslie Valiant","Alexander Razborov","Avi Wigderson","Peter Shor","Madhu Sudan","Jon Kleinberg","Daniel Spielman","Subhash Khot"};std::ifstream("random.in")>>a;std::ofstream o("random.out");o<<(v[(a-1982)/4]);} ^ user.cpp:2:1: warning: ‘int main(int)’ takes only zero or two arguments [-Wmain] main(int a){std::string v[]={"Robert Tarjan","Leslie Valiant","Alexander Razborov","Avi Wigderson","Peter Shor","Madhu Sudan","Jon Kleinberg","Daniel Spielman","Subhash Khot"};std::ifstream("random.in")>>a;std::ofstream o("random.out");o<<(v[(a-1982)/4]);} ^~~~