#include stdioh#include stdlibhstruct ListNode int data; struct ListNode next;;struct ListNode createlist; 裁判实现细节不表struct ListNode reverse struct ListNode head ;void printlist struct ListNode h

struct ListNode *createlist() { struct ListNode *head = NULL; struct ListNode *tail = NULL; int n;

scanf("%d", &n);
while (n != -1) {
    struct ListNode *newNode = (struct ListNode*)malloc(sizeof(struct ListNode));
    newNode->data = n;
    newNode->next = NULL;
    
    if (head == NULL) {
        head = newNode;
        tail = newNode;
    } else {
        tail->next = newNode;
        tail = newNode;
    }
    
    scanf("%d", &n);
}

return head;

}