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+// Java program to remove duplicates
+// from a sorted linked list
+class LinkedList {
+	// head of list
+	Node head;
+	// Linked list Node
+	class Node {
+		int data;
+		Node next;
+		Node(int d)
+		{
+			data = d;
+			next = null;
+		}
+	}
+
+	// Function to remove duplicates from the given linked
+	// list
+	void removeDuplicates()
+	{
+		// Two references to head temp will iterate to the
+		// whole Linked List prev will point towards the
+		// first occurrence of every element
+		Node temp = head, prev = head;
+
+		// Traverse list till the last node
+		while (temp != null) {
+
+			// Compare values of both pointers
+			if (temp.data != prev.data) {
+				// if the value of prev is not equal to the
+				// value of temp that means there are no
+				// more occurrences of the prev data. So we
+				// can set the next of prev to the temp
+				// node.
+				prev.next = temp;
+				prev = temp;
+			}
+			//Set the temp to the next node
+			temp = temp.next;
+		}
+		// This is the edge case if there are more than one
+		// occurrences of the last element
+		if (prev != temp)
+			prev.next = null;
+	}
+
+	/* Utility functions */
+
+	/* Inserts a new Node at front of the list. */
+	public void push(int new_data)
+	{
+		/* 1 & 2: Allocate the Node &
+				Put in the data*/
+		Node new_node = new Node(new_data);
+		/* 3. Make next of new Node as head */
+		new_node.next = head;
+		/* 4. Move the head to point to new Node */
+		head = new_node;
+	}
+
+	/* Function to print linked list */
+	void printList()
+	{
+		Node temp = head;
+		while (temp != null) {
+			System.out.print(temp.data + " ");
+			temp = temp.next;
+		}
+		System.out.println();
+	}
+
+	/* Driver program to test above functions */
+	public static void main(String args[])
+	{
+		LinkedList llist = new LinkedList();
+		llist.push(20);
+		llist.push(13);
+		llist.push(13);
+		llist.push(11);
+		llist.push(11);
+		llist.push(11);
+
+		System.out.print("List before ");
+		System.out.println("removal of duplicates");
+		llist.printList();
+
+		llist.removeDuplicates();
+
+		System.out.println(
+			"List after removal of elements");
+		llist.printList();
+	}
+}
+
+// This code is contributed by Sania Kumari Gupta