1long double 2ll_to_ld (long long n) 3{ 4 return n; 5} 6 7long long 8ld_to_ll (long double n) 9{ 10 return n; 11} 12 13main () 14{ 15 long long n; 16 17 if (ll_to_ld (10LL) != 10.0) 18 abort (); 19 20 if (ld_to_ll (10.0) != 10) 21 abort (); 22 23 exit (0); 24} 25