Update 0019.删除链表的倒数第N个节点.md

problems/0019.删除链表的倒数第N个节点.md

@@ -75,10 +75,11 @@ public:
             fast = fast->next;
             slow = slow->next;
         }
+        slow->next = slow->next->next; 
         
-        ListNode *nth = slow->next;
+        // ListNode *tmp = slow->next;  C++释放内存的逻辑
-        slow->next = nth->next;
+        // slow->next = tmp->next;
-        delete nth;
+        // delete nth;
         
         return dummyHead->next;
     }