Description
输入多个整数,以-1作为结束标志,顺序建立一个带头结点的单链表,之后对该单链表的数据进行逆置,并输出逆置后的单链表数据。
Input
输入多个整数,以-1作为结束标志。
Output
输出逆置后的单链表数据。
Sample
Input?
12 56 4 6 55 15 33 62 -1
Output?
62 33 15 55 6 4 56 12
Hint
不得使用数组。
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
struct node{
int data;
struct node *next;
};
int main(){
struct node *head;
head = (struct node *)malloc(sizeof(struct node));
head -> next = NULL;
struct node *p;
int n;
while(~scanf("%d", &n) && n != -1){
p = (struct node *)malloc(sizeof(struct node));
p -> data = n;
p -> next = NULL;
p -> next = head -> next;
head -> next = p;
}
p = head -> next;
while(p != NULL){
if(p -> next != NULL){
printf("%d ", p -> data);
}
else{
printf("%d\n", p -> data);
}
p = p -> next;
}
return 0;
}
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