Compilare: user.cpp: In function ‘int Find(int)’: user.cpp:14: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void Insert(int)’: user.cpp:20: warning: unused variable ‘i’ user.cpp: In function ‘void Erase(int)’: user.cpp:26: warning: unused variable ‘i’ user.cpp: In function ‘int main()’: user.cpp:40: warning: suggest explicit braces to avoid ambiguous ‘else’