为了练指针而练指针。

#include <cstdio>
#include <cstring>
#include <cstdlib>
struct Node{
       char str[100];
       Node *next,*pre;
       };
int N,W,S;
Node *head,*tail,*t;
inline void del(Node *x);
int main(){
    int i,j;
    scanf("%d%*c",&N);
    head=new Node;
    tail=head;
    for (i=1;i<=N;i++){
        gets(tail->str);
        tail->next=new Node;
        tail->next->pre=tail;
        tail=tail->next;
        }    
    tail->pre->next=head;
    head->pre=tail->pre;
    scanf("%d,%d",&W,&S);
    t=head;
    for (i=1;i<W;i++)
        t=t->next;
    for (t=t;t->next!=t;0){
        for (i=1;i<S;i++)
            t=t->next;
            puts(t->str);
            t=t->next;
            del (t->pre);
            }
    puts(t->str);
    system("pause");
    }
inline void del(Node *x){
       x->next->pre=x->pre;
       x->pre->next=x->next;
       delete x;
       }

• Re:平生第一个指针 AC 0ms (1006) 385315007 2011-09-05 23:53:00