SWUST OJ(960)

 1 /*双向链表的操作问题*/
 2 #include <stdio.h>
 3 #include <stdlib.h>
 4 
 5 typedef struct DLNode
 6 {
 7     int data;
 8     struct DLNode *prior,*next;
 9 }DLinkList;
10 
11 void InitList(DLinkList *&L)
12 {
13     L =(DLinkList*)malloc(sizeof(DLinkList));
14     L->prior = L;
15     L->next = L;
16 }
17 
18 void CreateList(DLinkList *&L, int n)
19 {
20     DLinkList * p,*r;
21     r = L;
22     for (int i = 0; i < n; ++i)
23     {
24         p =(DLinkList*)malloc(sizeof(DLinkList));
25         scanf("%d",&p->data);
26         p->next = r->next;
27         r->next->prior = p;
28         r->next = p;
29         p->prior = r;
30         L->prior = p;
31         r = p;
32     }
33 }
34 
35 void Dis(DLinkList *L)
36 {
37     DLinkList *r;
38     r = L;
39     while(r->next!=L)
40     {
41         r = r->next;
42         printf("%d ",r->data); 
43     }
44 }
45 
46 void sor(DLinkList *&L)
47 {
48     DLinkList *f,*s;
49     int tem;
50     f = L->next;
51     s = f->next;
52     while(f!=L)
53     {
54         while(s!=L)
55         {
56             if (f->data > s->data)
57             {
58                 tem = f->data;
59                 f->data = s->data;
60                 s->data = tem;
61             }
62             s = s->next;
63         }
64 
65         f = f->next;
66         s = f->next;
67     }
68 }
69 
70 int main(int argc, char const *argv[])
71 {
72     DLinkList * L;
73     int n;
74     scanf("%d",&n);
75     InitList(L);
76     CreateList(L,n);
77     sor(L);
78     Dis(L);
79     return 0;
80 }