Compilare: user.cpp: In function ‘void eliminare(char*)’: user.cpp:33: warning: NULL used in arithmetic user.cpp:42: warning: comparison between signed and unsigned integer expressions user.cpp:7: warning: unused variable ‘i’ user.cpp: In function ‘bool verificare(char*)’: user.cpp:52: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:74: warning: comparison between signed and unsigned integer expressions user.cpp:72: warning: unused variable ‘pd’ user.cpp:72: warning: unused variable ‘pi’ user.cpp:72: warning: ‘poz’ may be used uninitialized in this function