問1
(1)1; (2)fib(n-1) + fib(n-2);
問2
(1)n1 = n2; (2)n2 = sum;
問3
(1)(rval >= 0) (2)rval; (3)rval = fib(n-1) + fib(n-2); (4)fib_ary[n] = rval;
問4
(1)list_tのサイズ (2)list_t (3)list_tへのポインタ