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Commit 9fd0ab5

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solves remove duplicate from sorted list II
1 parent 0f5017b commit 9fd0ab5

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‎README.md

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| 79 | [Word Search](https://leetcode.com/problems/word-search) | [![Java](assets/java.png)](src/WordSearch.java) | |
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| 80 | [Remove Duplicates from Sorted Array II](https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii) | [![Java](assets/java.png)](src/RemoveDuplicatesFromSortedArrayII.java) | |
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| 81 | [Search in Rotated Sorted Array II](https://leetcode.com/problems/search-in-rotated-sorted-array-ii) | [![Java](assets/java.png)](src/SearchInRotatedSortedArrayII.java) | |
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| 82 | [Remove Duplicates from Sorted List II](https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii) | [![Java](assets/java.png)](src/RemoveDuplicatesFromSortedListII.java) | |
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| 83 | [Remove Duplicates from Sorted List](https://leetcode.com/problems/remove-duplicates-from-sorted-list) | [![Java](assets/java.png)](src/RemoveDuplicatesFromSortedList.java) [![Python](assets/python.png)](python/remove_duplicates_from_linked_list.py) | |
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| 88 | [Merge Sorted Array](https://leetcode.com/problems/merge-sorted-array) | [![Java](assets/java.png)](src/MergeSortedArray.java) [![Python](assets/python.png)](python/merge_sorted_array.py) | |
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| 94 | [Binary Tree Inorder Traversal](https://leetcode.com/problems/binary-tree-inorder-traversal/) | [![Java](assets/java.png)](src/BinaryTreeInorderTraversal.java) [![Python](assets/python.png)](python/binary_tree_inorder_traversal.py) | |
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// https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii
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// T: O(N)
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// S: O(1)
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public class RemoveDuplicatesFromSortedListII {
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private static class ListNode {
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int val;
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ListNode next;
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}
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public ListNode deleteDuplicates(ListNode head) {
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if (head == null) return null;
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ListNode tempHead = new ListNode();
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tempHead.next = head;
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int val;
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for (ListNode current = head, previous = tempHead ; current != null && current.next != null ; ) {
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if (current.val == current.next.val) {
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val = current.val;
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while (current.next != null && current.next.val == val) {
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current = current.next;
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}
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current = current.next;
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previous.next = current;
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} else {
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previous = current;
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current = current.next;
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}
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}
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return tempHead.next;
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}
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}

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