graf.h

typedef struct tagCon
{
    int cityB;
    int dist;
    char rtype;
    tagCon* next;
}Con;

typedef struct tagListHead
{
    Con* pHead;
    Con* pTail;
} ListHead;

typedef struct tagCity
{
    int citynum;
    ListHead Head;
}City;


void MakeEmptyList(ListHead* pFirst);
void AddElement(int cityB, char rtype, int dist, ListHead* pHead);
City** Read();
void Print(City** Cities);