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added removeDuplicates() function #1292

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Merged
merged 1 commit into from
May 11, 2020
Merged

added removeDuplicates() function #1292

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added removeDuplicates function
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Moetez Skouri authored and Moetez Skouri committed Apr 29, 2020
commit fc8e36c6e319c87cefa270c16e76c64416344588
13 changes: 13 additions & 0 deletions DataStructures/Lists/DoublyLinkedList.java
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Expand Up @@ -160,6 +160,19 @@ else if (current == null)
current.previous = newLink; // 1 <--> newLink <--> 2(current) <--> 3
}
}

public static void removeDuplicates(DoublyLinkedList l ) {
Link linkOne = l.head ;
while(linkOne.next != null) { // list is present
Link linkTwo = linkOne.next; // second link for comparison
while(linkTwo.next!= null) {
if(linkOne.value == linkTwo.value) // if there are duplicates values then
l.delete(linkTwo.value); // delete the link
linkTwo = linkTwo.next ; // go to next link
}
linkOne = linkOne.next; // go to link link to iterate the whole list again
}
}

/**
* Returns true if list is empty
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