Compilare: user.cpp: In function ‘int two(int, std::vector<int>&)’: user.cpp:99:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int hatra(int, std::vector<int>)’: user.cpp:58:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int elore(int, std::vector<int>)’: user.cpp:92:1: warning: control reaches end of non-void function [-Wreturn-type] } ^