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docs/notes/18.2 删除链表中重复的结点.md

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+# 18.2 删除链表中重复的结点
+
+[NowCoder](https://www.nowcoder.com/practice/fc533c45b73a41b0b44ccba763f866ef?tpId=13&tqId=11209&tPage=1&rp=1&ru=/ta/coding-interviews&qru=/ta/coding-interviews/question-ranking&from=cyc_github)
+
+## 题目描述
+
+<img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/17e301df-52e8-4886-b593-841a16d13e44.png" width="450"/>
+
+## 解题描述
+
+```java
+public ListNode deleteDuplication(ListNode pHead) {
+    if (pHead == null || pHead.next == null)
+        return pHead;
+    ListNode next = pHead.next;
+    if (pHead.val == next.val) {
+        while (next != null && pHead.val == next.val)
+            next = next.next;
+        return deleteDuplication(next);
+    } else {
+        pHead.next = deleteDuplication(pHead.next);
+        return pHead;
+    }
+}
+```