重复元素的删除问题

来源：互联网发布：知乎周刊编辑：程序博客网时间：2024/05/22 02:31

代码：

#include<stdio.h>

#include<malloc.h>
struct node
{
    int data;
    struct node *next;
};
struct node *creat(int n)
{
    struct node *head,*p;
    head=(struct node*)malloc(sizeof(struct node));
    head->next=NULL;
    for(int i=0;i<n;i++)
    {
        p=(struct node*)malloc(sizeof(struct node));
        scanf("%d",&p->data);
        p->next=NULL;
        p->next=head->next;
        head->next=p;
    }
    return head;
}
void print(struct node *h)
{
    struct node *p=h->next;
    while(p!=NULL)
    {
        if(p->next==NULL)
            printf("%d\n",p->data);
        else
            printf("%d ",p->data);
            p=p->next;
    }

}
struct node *chazhao(struct node *head,int n)
{

    struct node *p,*q,*h;
    h=head->next;
    while(h!=NULL)
    {
        p=h;

        while(p->next!=NULL)
        {
         if(p->next->data==h->data)
         {
             q=p->next;
             p->next=q->next;
             free(q);
             n--;
         }
        else
         p=p->next;

      }
        h=h->next;
    }
    printf("%d\n",n);
    return head;

}
int main()
{

    int n;
    scanf("%d",&n);
    struct node *head1,*head2;
    head1=creat(n);
    printf("%d\n",n);
    print(head1);
    head2=chazhao(head1,n);
    print(head2);
    return 0;
}

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