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Created Jul 4, 2021
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DL List delete last node
func DeleteLast(head **DLNode) {
if *head == nil {
fmt.Println("\nList is empty")
// If there is only 1 node in the list
if (*head).Next == nil {
*head = nil
current := *head
// Find the last node
for current.Next != nil {
current = current.Next
fmt.Println("\nDeleting last node: ", current)
// Change the Next pointer of the penultimate node to nil
current = current.Prev
current.Next = nil
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