Compilare: In file included from /usr/include/c++/3.3/backward/iomanip.h:31, from user.cpp:3: /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 `void solve()': user.cpp:152: warning: unused variable `int j' user.cpp:152: warning: unused variable `int nr' user.cpp: In function `void afisare()': user.cpp:225: warning: unknown conversion type character 0xa in format