225: Test post
#include < iostream > using namespace std ; class Node { private : int value ; Node * nextNode ; Node * prevNode ; public : Node () { value = 0 , nextNode = nullptr, prevNode = nullptr; } Node ( int value ) { this-> value = value , nextNode = nullptr, prevNode = nullptr; } void setValue ( int value ) { this-> value = value ; } void setNextNode ( Node * nextNode ) { this-> nextNode = nextNode ; } void setPrevNode ( Node * prevNode ) { this-> prevNode = prevNode ; } int getValue () { return value ; } Node * getNextNode () { return nextNode ; } Node * getPrevNode () { return prevNode ; } }; class DoublyLinkedList { private : int size ; Node * headNode ; Node * currentNode ; public : DoublyLinkedLi...