Compilare: main.cpp: In member function 'int ARBORE::pref(int)': main.cpp:288:5: warning: control reaches end of non-void function [-Wreturn-type] 288 | } | ^ main.cpp: In member function 'int ARBORE::suf(int)': main.cpp:258:5: warning: control reaches end of non-void function [-Wreturn-type] 258 | } | ^