Compilare: In file included from /usr/include/c++/3.3/backward/iostream.h:31, from user.cpp:2: /usr/include/c++/3.3/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 <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated. user.cpp: In function `int main()': user.cpp:8: warning: format argument is not a pointer (arg 3) user.cpp:10: warning: format argument is not a pointer (arg 3) user.cpp:4: warning: `long int n' might be used uninitialized in this function user.cpp:4: warning: `long int t' might be used uninitialized in this function