Compilare: user.cpp: In function 'int main()': user.cpp:98: warning: unused variable 'x' user.cpp: In function 'int cmp(char*, char*)': user.cpp:25: warning: control reaches end of non-void function user.cpp: In function 'void cuplaj()': user.cpp:56: warning: 'y' may be used uninitialized in this function