Code Duplication    Length = 17-17 lines in 2 locations

DataStructures/Lists/CircularLinkedList.php 1 location

@@ 246-262 (lines=17) @@
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     * 
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     * @return null if the head is null (or list is empty)
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     */
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    public function getAll() {
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        if($this->head === null) {
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            return;
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        }
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        if($this->head->next === $this->tail) {
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            yield $this->head->data;
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        } else {
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            $current = $this->head;
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            $i = 0;
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            while($i < $this->size) {
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                yield $current->data;
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                $current = $current->next;
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                $i++;
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            }
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        }
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    }
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    /**
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     * Delete a node in the given position and returns it back.

DataStructures/Lists/DoublyLinkedList.php 1 location

@@ 154-170 (lines=17) @@
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     * 
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     * @return null if the head is null (or list is empty)
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     */
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    public function getAll() {
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        if($this->head === null) {
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            return;
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        }
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        if($this->head === $this->tail) {
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            yield $this->head->data;
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        } else {
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            $current = $this->head;
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            $i = 0;
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            while($i < $this->size) {
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                yield $current->data;
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                $current = $current->next;
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                $i++;
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            }
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        }
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    }
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    /**
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     * Checks if the list is empty.