Compilare: user.cpp: In function ‘int main()’: user.cpp:28:34: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[23]’ [-Wformat=] jok=fscanf(f,"%s",&x[n].s); ^ user.cpp:20:10: warning: unused variable ‘c1’ [-Wunused-variable] char c1; ^ user.cpp:21:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,ok; ^ user.cpp:21:15: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] int n,i,j,ok; ^ user.cpp:65:9: warning: unused variable ‘e’ [-Wunused-variable] int e; ^