Eroare de compilare: user.cpp: In member function ‘bool cmp::operator()(const int&, const int&)’: user.cpp:13:9: error: named return values are no longer supported return x > y; ^ user.cpp:13:20: error: expected ‘{’ at end of input return x > y; ^ user.cpp:13:20: warning: no return statement in function returning non-void [-Wreturn-type] user.cpp: In function ‘int main()’: user.cpp:31:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sm<x) ^ user.cpp:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sm<x) ^