C语言用尾插法建立单链表，当输入元素为0时停止并输出链表

的所有元素。

#include <stdio.h>
#include <stdlib.h>

typedef struct Node {
    int data;
    struct Node *next;
} Node;

int main() {
    Node *head = NULL;
    Node *tail = NULL;

    int num;
    do {
        scanf("%d", &num);
        if (num == 0) {
            break;
        }

        Node *node = (Node *)malloc(sizeof(Node));
        node->data = num;
        node->next = NULL;

        if (tail == NULL) {
            head = node;
            tail = node;
        } else {
            tail->next = node;
            tail = node;
        }
    } while (1);

    Node *p = head;
    while (p != NULL) {
        printf("%d ", p->data);
        p = p->next;
    }
    printf("\n");

    return 0;
}

输入：

1 2 3 4 5 6 0

输出：

1 2 3 4 5 6