c - 如何按降序对这个链表进行排序？

Question

我不知道这是不是基本的，但我只知道如何按升序排序。

 system("cls");
    if (headptr != (struct online*)NULL)
{

    currentptr = headptr;
    for(; currentptr->ptrnext != NULL; currentptr = currentptr->ptrnext)
    {
        for(newptr = currentptr->ptrnext; newptr != (struct online*)NULL; newptr = newptr->ptrnext)
        {
            if(currentptr->score > newptr->score)
            {
                int temp = currentptr->score;
                currentptr->score = newptr->score;
                newptr->score = temp;
            }
        }
    }

}

Answer 1

改变

if(currentptr->score > newptr->score)

与其互补操作

if(currentptr->score <= newptr->score)

这将颠倒顺序。