#ifndef DATATYPES_H
#define DATATYPES_H

typedef struct {
	int xpos;
	int ypos;
} PosType;


typedef struct DQNode {
	PosType seat;
	struct DQNode *next;
	struct DQNode *pre;
} DQNode, *DQueuePtr;

typedef struct {
	DQueuePtr front;
	DQueuePtr rear;
} DLinkQueue;

typedef int bool;
#define true 1
#define false 0

#endif