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+# # [83] (https://leetcode.com/problems/remove-duplicates-from-sorted-list/)
+# C++
+
+```cpp
+#include <iostream>
+
+struct ListNode {
+    int val;
+    ListNode *next;
+    ListNode() : val(0), next(nullptr) {}
+    ListNode(int x) : val(x), next(nullptr) {}
+    ListNode(int x, ListNode *next) : val(x), next(next) {}
+};
+
+class Solution {
+ public:
+    ListNode* deleteDuplicates(ListNode* head) {
+        ListNode* node = head;
+
+        while (node != nullptr && node->next != nullptr) {
+            if (node->val == node->next->val) {
+                node->next = node->next->next;
+            }
+            else {
+                node = node->next;
+            }
+        }
+        return head;
+    }
+
+};
+```