大神帮忙找一下为什么输出不正确（删除节点，可是好像没起作用）
#include "stdio.h"
#include "malloc.h"
#define LEN sizeof(struct DATA)

struct DATA
{
    int score;
    int numb;
    struct DATA *next;
};

struct DATA *create(int n)
{
     struct DATA *head=NULL,*p1=NULL,*p2=NULL;
     int i;
     for(i=1;i<=n;i++)
     {
            p1=(struct DATA *)malloc(LEN);
            p1->numb=i;
            p1->next=NULL;
            if(i==1)
                head=p1;
            else
                p2->next=p1;
            p2=p1;
      }
      p2->next=head;
      return(head);
}

main()
{
    struct DATA *head,*p1,*p2;
    int n,i=1,num=1;
    scanf("%d",&n);
    head=create(n);

    p1=head;
    while(n!=1)
    {
        p2=p1;
        p1=p1->next;
        p1->score=num;
        num++;
        if(p1->score==3*i)
            p1=p1->next,p1->score=num,num++,p2->next=p1,i++,n--;

    }
    printf("%d",head->next->numb);
}

类似问题有好多贴参考
论坛搜索一下“约瑟夫环”看看