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- namespace CppLists
- {
- struct List;
- struct Node
- {
- Node* next;
- int data;
- Node* prev;
- };
- struct List
- {
- List();
- Node* first;
- Node* last;
- int size;
- };
- }
- ____________________________________
- #include "CppLists.h"
- #define NULL 0
- CppLists::List()
- {
- size = 0;
- first = NULL;
- last = NULL;
- }
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