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Update 0024.两两交换链表中的节点.md 修复没有delete dummyHead的错误
new了一个虚拟头结点,但没有delete它
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@ -63,7 +63,9 @@ public:
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cur = cur->next->next; // cur移动两位,准备下一轮交换
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}
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return dummyHead->next;
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ListNode* result = dummyHead->next;
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delete dummyHead;
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return result;
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}
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};
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```
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