PTA作业10单链表7-4

题目

#include
struct node{
	int data;
	struct node *next;
}*h1,*h2,*las,*p,*H1,*H2;
int x;
void insert(struct node *now,int x){
	struct node *p;
	for (;now->next && x>now->next->data;now=now->next);
	p=(struct node*)malloc(sizeof(struct node));
	p->next=now->next;
	now->next=p;
	p->data=x;
}
void print(struct node *now){
	las=now;
	now=now->next;
	if (now) printf("%d",now->data);
	else{
		puts("");
		return;
	}
	for (las=now,now=now->next;now;las=now,now=now->next)
	printf("->%d",now->data);
	puts("");
	return;
}
void destroy(struct node *now){
	if (!now) return;
	struct node *las=now;
	for (now=now->next;now;free(las),las=now,now=now->next);
	free(las);
	return;
}
struct node *reverse(struct node *head){
    struct node *p,*q;
    q=(struct node*)malloc(sizeof(struct node));
    q=NULL;
    for (;head;head=head->next){
    	p=(struct node*)malloc(sizeof(struct node));
        p->data=head->data;
        p->next=q;
        q=p;
	}
    p=(struct node*)malloc(sizeof(struct node));
    p->next=q,q=p;
	return q;
}
void split(struct node **h1,struct node **h2){
	struct node*las=*h1;
	*h1=(*h1)->next;
	for (;*h1;las=*h1,*h1=(*h1)->next)
		if (!((*h1)->data&1)){
			(*h2)->next=(struct node*)malloc(sizeof(struct node));
			*h2=(*h2)->next;
			(*h2)->data=(*h1)->data;
			(*h2)->next=NULL;
			las->next=(*h1)->next;
			free(*h1);
			*h1=las;
		}
}
int main(){
	h1=(struct node*)malloc(sizeof(struct node));
	h2=(struct node*)malloc(sizeof(struct node));
	h1->next=h2->next=NULL;
	while (~scanf("%d",&x)) insert(h1,x);
	print(h1);
	H1=h1,H2=h2;
	split(&h1,&h2);
	print(H1);
	print(H2);
	destroy(H1);
	destroy(H2);
//	p=reverse(h1->next); next不能忘啊！！ 
}