Compilare: user.cpp: In function ‘int main()’: user.cpp:22:24: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] fscanf(f1, "%d", &x); ^ user.cpp:31:23: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(f2, "%d", i); ^ user.cpp:19:20: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] long long int *p; ^