学步园

LinkedList* IsCyclicLinkedList (LinkedList* pHead)<br /> {<br /> LinkedList* pCur;<br /> LinkedList* pStart;<br /> while (pCur != NULL)<br /> {<br /> for ( ; ; )<br /> {<br /> if (pStart == pCur->next)<br /> return pStart;<br /> pStart = pStart->next;<br /> }<br /> pCur = pCur->next;<br /> }<br /> return pStart;<br /> } 

我修改后如下：

LinkedList* IsCyclicLinkedList (LinkedList* pHead)<br /> {<br /> LinkedList* pCur = pHead;<br /> LinkedList* pStart = pHead;<br /> while (pCur != NULL)<br /> {<br /> if (pStart == pCur->next)<br /> return pStart;<br /> /*pStart = pStart->next;*/<br /> pCur = pCur->next;<br /> }<br /> return pStart;<br /> }