Compilare: In file included from /usr/include/c++/4.2/backward/fstream.h:31, from user.cpp:1: /usr/include/c++/4.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated. user.cpp: In function 'int main()': user.cpp:47: warning: unused variable 'i1' user.cpp:47: warning: unused variable 'i2' user.cpp:47: warning: unused variable 'i0' user.cpp:47: warning: unused variable 'uup' user.cpp:47: warning: unused variable 'up' user.cpp:47: warning: unused variable 'down' user.cpp:47: warning: unused variable 'dwn' user.cpp:47: warning: unused variable 'st' user.cpp:47: warning: unused variable 'dr' user.cpp:48: warning: unused variable 's' user.cpp:48: warning: unused variable 'numa' user.cpp:48: warning: unused variable 'numi' user.cpp:48: warning: unused variable 'l' user.cpp:48: warning: unused variable 'lmax' user.cpp:48: warning: unused variable 'sst' user.cpp:48: warning: unused variable 'ddr' user.cpp:48: warning: unused variable 'tg' user.cpp:48: warning: unused variable 'sin' user.cpp:48: warning: unused variable 'cos'