想用字符串链表实现字符串的部分反转：
例如，输入： I have a cat
      输出:  cat a have I

我已经写好的链表结构，插入和反转函数如下，但没有想好在main函数中，如何把以空格分开的字符串存入链表中的char *word中，
麻烦大家帮忙想下

谢谢

struct strings
{
    char *word;
    struct strings *next;
};

struct strings *head;

struct strings *insertWords(struct strings *head, char *input)
{
    struct strings *currPtr, *newPtr;

    newPtr = (struct strings*)malloc(sizeof(struct strings));
    
    if (newPtr != NULL)
    {
        currPtr = head;
        
        newPtr->word = input;
        newPtr->next = NULL;

        if (currPtr == NULL)
        {
            head = newPtr;
        }

        while(currPtr->next != NULL)
        {
            currPtr = currPtr->next;
        }

        currPtr->next = newPtr;
    }

    else
    {
        printf("No enough memory!\n");
    }

    return head;
}

void stringReverse(struct string *head)
{
    struct string *p, *q, *r;

    if(head == NULL)
    {
        return;
    }

    p = head;
    q = p->next;
    p->next = NULL;

    while(q != NULL)
    {
        r = q->next;
        q->next = p;
        p = q;
        q = r;
    }

    head = p;
}