Compilare: user.cpp: In member function ‘triple triple::operator=(const triple&)’: user.cpp:37:5: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:52:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < n; i++) ^ user.cpp:53:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < n; j++) ^ user.cpp:54:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < n; k++) ^