Compilare: user.cpp: In function ‘int main()’: user.cpp:110:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf( fl, "%d", pcc ); ^ user.cpp:15:6: warning: variable ‘res’ set but not used [-Wunused-but-set-variable] int res; ^ user.cpp:17:31: warning: unused variable ‘g’ [-Wunused-variable] struct node *p, *u, *e, *f, *g; ^ user.cpp:22:14: warning: unused variable ‘j’ [-Wunused-variable] long i = 0, j; ^