Compilare: user.cpp:63:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:7: warning: unused variable 'p1' user.cpp:7: warning: unused variable 'p2' user.cpp:7: warning: unused variable 'b' user.cpp:4: warning: 'nr' is used uninitialized in this function user.cpp:6: warning: 'nn' may be used uninitialized in this function