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:3: warning: unused variable 'r1' user.cpp:3: warning: unused variable 'r2' user.cpp:3: warning: unused variable 'c1' user.cpp:3: warning: unused variable 'c2' user.cpp:3: warning: unused variable 'a' user.cpp:3: warning: unused variable 'j' user.cpp:3: warning: unused variable 'f' user.cpp:3: warning: unused variable 'i' user.cpp:3: warning: unused variable 'lmax' user.cpp:3: warning: unused variable 'nd' user.cpp:3: warning: unused variable 'lee1' user.cpp:3: warning: unused variable 'lee2' user.cpp:4: warning: unused variable 'm' user.cpp:5: warning: unused variable 'd' user.cpp:5: warning: unused variable 'b' user.cpp:89: warning: 'nr' is used uninitialized in this function