A.(B,F,G,J,A,E,D,I,C,H) B.(B,A,D,E,F,G,I,J,H,C. C.(A,B,D,C,E,F,I,J,G,H) D.(A,B,D,C,F,E,J,I,H,G)
A.递归程序 B.迭代程序 C.队列操作 D.栈操作
A.10,6,18,8,4,2,12,20,16,30,28 B.1,12,10,20,6,18,4,16,30,8,28 C.2,4,6,8,10,12,16,18,20,28,30 D.30,10,20,12,2,4,16,6,8,28,18