Compilare: user.cpp:33:21: warning: multi-character character constant [-Wmultichar] f2<<'/n'; ^ user.cpp: In function ‘void cit()’: user.cpp:8:23: warning: unused variable ‘x’ [-Wunused-variable] void cit() {f1>>n;int x,y; ^ user.cpp:8:25: warning: unused variable ‘y’ [-Wunused-variable] void cit() {f1>>n;int x,y; ^