c_cpp 获取节点值 - Hackerrank

Posted 2021-05-14

int GetNode(Node *head,int positionFromTail)
{
    Node *current = head;
    int count = 0;
    while(current != NULL){
        count++;
        current = current->next;
    }
    int position = count - positionFromTail;
    current = head;
    while(--position > 0){
        current = current->next;
    }
    return current->data;
}