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:6: warning: unused variable 'x' user.cpp:6: warning: unused variable 'c' user.cpp:6: warning: unused variable 'd' user.cpp:6: warning: unused variable 'e' user.cpp:6: warning: 'p11' may be used uninitialized in this function user.cpp:6: warning: 'p9' may be used uninitialized in this function user.cpp:6: warning: 'p8' may be used uninitialized in this function user.cpp:6: warning: 'p7' may be used uninitialized in this function user.cpp:6: warning: 'k2' may be used uninitialized in this function user.cpp:6: warning: 'k1' may be used uninitialized in this function user.cpp:6: warning: 'p10' may be used uninitialized in this function user.cpp:6: warning: 'p6' may be used uninitialized in this function