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234回文链表处的一个注解修改
不确定我的理解是不是对的(-o-)
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@ -4243,7 +4243,7 @@ public boolean isPalindrome(ListNode head) {
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slow = slow.next;
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fast = fast.next.next;
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}
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if (fast != null) slow = slow.next; // 偶数节点,让 slow 指向下一个节点
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if (fast != null) slow = slow.next; // 链表节点个数为奇数,让 slow 指向下一个节点
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cut(head, slow); // 切成两个链表
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return isEqual(head, reverse(slow));
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}
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