Compilare: user.cpp: In function ‘void back(int)’: user.cpp:7:47: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] if(x==0){for(i=n;i>=1;i--){printf("%ld ",a[i]);}printf("\n");} ^ user.cpp: In function ‘int main()’: user.cpp:17:16: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%ld",&n); ^