栈和队列实现停车场

柔光的暖阳◎ 2022-07-12 23:38 166阅读 0赞

这几天一直在做停车场，熟悉一下学的栈和队列。

一开始的时候，我不知道停车场停车的时间怎么表示，所以我没有加时间，只有一个车号。在快做完的时候，我突然发现时间没办法添加上去了，因为一个栈里只有一个数组，两个数组的话很难进行操作，在pop的时候只能弹出一个元素，我尝试了很多方法，最后用一个结构体数组完成了，在停车栈里面加一个结构体数组，这样就能完美的解决了两个元素的问题。时间的显示我也考虑了很久，查了资料后，我用time（）函数实现了，用现在的time（）减去之前的time（）便得到了停车的时长。

/**********************************************************
    File Name:         
    Author:            xxx      Date：2016-12-15
    Description：   实现停车场功能
    Fuction List:
    ************************************************************/
    
    #include <stdio.h>
    #include <stdlib.h>
    #include <time.h>
    
    #define  SIZE         10
    #define  ok            0
    #define  error        -1
    #define  malloc_error -2
    
    typedef struct car
    {
    	int num;
    	int time;
    }Car;
    
    typedef struct park
    {
    	Car car[SIZE];
    	int top1;
    }Park;
    
    typedef struct give_way
    {
    	Car car[SIZE];
    	int top2;
    }Give_way;
    
    typedef struct wait_node
    {
    	int data;          //队列结点数据
    	struct wait_node *next; //结点链指针
    }Wait;
    typedef Wait* Pwait;
    
    typedef struct wait_queue
    {
    	Pwait front;       //队头指针
    	Pwait rear;        //对尾指针
    }Wait_queue;
    
    Car EMPTY = {-3,0};
    
    //显示函数
    void show()
    {
    	system("clear");
    	printf("\t\t*********************************************\n");
    	printf("\t\t* \twelcome to our car parking          *\n");
    	printf("\t\t*                                           *\n");
    	printf("\t\t*\tA) 停车                             *\n");
    	printf("\t\t*\tB) 离开                             *\n");
    	printf("\t\t*\tC) 查看停车场停车情况               *\n");
    	printf("\t\t*\tD) 退出                	            *\n");
    	printf("\t\t*                                           *\n");
    	printf("\t\t*********************************************\n");
    	printf("                                         \n");
    	printf("                                         \n");
    	printf("                                         \n");
    	printf("                                         \n");
    	printf("         请告诉我您的选择:");
    }
    
    //初始化park栈
    int Init_park(Park *p)
    {
    	if(p == NULL)
    	{
    		return error;
    	}
    	p->top1 = -1;
    	return ok;
    }
    
    //初始化Give_way栈
    int Init_Give_way(Give_way *g)
    {
    	if(g == NULL)
    	{
    		return error;
    	}
    	g->top2 = -1;
    	return ok;
    }
    
    //初始化Wait_queue队列
    int Init_Wait_queue(Wait_queue *wq)
    {
    	if (wq == NULL)
    	{
    		return error;
    	}
    	wq->front = NULL;
    	wq->rear = NULL;
    	
    	return ok;
    }
    
    //判断停车场是否为空
    int Park_empty(Park *p)
    {
    	if(p == NULL)
    	{
    		return error;
    	}
    	return p->top1 == -1;
    }
    
    //判断停车场是否满
    int Park_full(Park *p)
    {
    	if(p == NULL)
    	{
    		return error;
    	}
    	return p->top1 == SIZE - 1;
    }
    
    //将车停入车场    入栈1
    int Push_park(Park *p, int n,int time)
    {
    	if (p == NULL)
    	{
    		return error;
    	}
    	
    	if(Park_full(p))
    	{
    		return error;
    	}
    
    	p->top1++;
    	p->car[p->top1].num = n;
    	p->car[p->top1].time = time;
    	
    	return ok;
    }
    
    //判断候车队列是否空队
    int Queueempty(Wait_queue *q)
    {
    	if(q == NULL)
    	{
    		return error;
    	}
    	
    	return q->front == NULL;
    }
    
    //停车场满了 停入候车区    入队
    int Push_wait(Wait_queue *wq, int n)
    {
    	if(wq == NULL)
    	{
    		return error;
    	}
    	Pwait node = (Pwait)malloc(sizeof(Wait)/sizeof(char));
    	if(node == NULL)
    	{
    		return malloc_error;
    	}
    	
    	node->data = n;
    	node->next = NULL;
    	
    	if(Queueempty(wq))
    	{
    		wq->front = node;
    		wq->rear = node;
    	}
    	else
    	{
    		wq->rear->next = node;
    		wq->rear = node;
    	}
    	
    	return ok;
    }
    
    //候车场开出一辆车进停车场   出队
    int GetPop_wait(Wait_queue *wq)
    {
    	if(wq == NULL)
    	{
    		return error;
    	}
    	
    	if(Queueempty(wq))
    	{
    		return -3;
    	}
    	
    	Pwait p = wq->front;
    	int data = p->data;
    	wq->front = p->next;
    	
    	if(wq->front == NULL)
    	{
    		wq->rear = NULL;
    	}
    	
    	return data;
    }
    
    //停车场离开车  出栈1
    Car Pop_park(Park *p)
    {
    	if (p == NULL)
    	{
    		return ;
    	}
    	if(Park_empty(p))
    	{
    		return EMPTY;
    	}
    	
    	Car data;
    	data = p->car[p->top1];
    	p->top1--;
    	
    	return data;
    }
    
    //判断让车栈是否空栈
    int Give_wayempty(Give_way *g)
    {
    	if(g == NULL)
    	{
    		return error;
    	}
    	return g->top2 == -1;
    }
    
    //判断让车栈是否满栈
    int Give_wayfull(Give_way *g)
    {
    	if(g == NULL)
    	{
    		return error;
    	}
    	return g->top2 == SIZE - 1;
    }
    
    //离开的车进入让车栈    入栈2
    int Push_giveway(Give_way *g, Car data)
    {
    	if(g == NULL)
    	{
    		return error;
    	}
    	if(Give_wayfull(g))
    	{
    		return error;
    	}
    
    	g->top2++;
    	g->car[g->top2].num = data.num;
    	g->car[g->top2].time = data.time;
    	
    	
    	return ok;
    }
    
    //让车栈的车出栈     出栈2
    Car Pop_giveway(Give_way *g)
    {
    	if(g == NULL)
    	{
    		return ;
    	}
    	if(Give_wayempty(g))
    	{
    		return EMPTY;
    	}
    	Car data = g->car[g->top2];
    	g->top2--;
    	
    	return data;
    }
    
    //当前时间
    int get_time()
    {
    	time_t lt1;
    	lt1 = time(NULL);
    	return lt1;
    }
    
    int main()
    {
    	Park p;
    	if (Init_park(&p) != ok)
    	{
    		return error;
    	}
    	
    	Give_way gw;
    	if (Init_Give_way(&gw) != ok)
    	{
    		return error;
    	}
    	
    	Wait_queue wq;
    	if (Init_Wait_queue(&wq) != ok)
    	{
    		return error;
    	}
    	
    	char option[2];
    	int i[10];
    	int n = 1;
    	int x = 1;
    	int count = 0;
    	int tab = 0;
    	int j;
    	Car dat[SIZE] = {0};
    	Car data ;
    	int data1;
    	
    	while(x)
    	{
    		show();
    		scanf("%s", option);
    		
    		switch (option[0])
    		{
    			case 'A' :
    			{
    				if (Push_park(&p,n,get_time()) != ok)
    				{
    					Push_wait(&wq, n);
    					system("clear");
    					printf("\n\n\n\n\n\n");
    					printf("\t\t\t停车场已满，车号为%d的车已移至候车区处！",n);
    					printf("\n\n\n\n\n\n");
    					printf("按下任意键返回:");
    					scanf("%s", i);
    				}
    				else
    				{
    					count++;
    					system("clear");
    					printf("\n\n\n\n\n\n");
    					printf("\t\t\t恭喜您，车号为%d的车停车成功！", n);
    					printf("\n\n\n\n\n\n");
    					printf("按下任意键返回:");
    					scanf("%s", i);
    				}
    				
    				n++;
    				break;
    			}
    			case 'B' :
    			{
    				system("clear");
    				printf("\n\n\n\n\n\n");
    				printf("您想让哪辆车离开呢？请输入车号：");
    				scanf("%d", &tab);
    				
    				int flag = 1;
    				
    				for(j = 1; j <= count; j++)
    				{
    					data = Pop_park(&p);
    					
    					if (data.num != tab)
    					{
    						Push_giveway(&gw,data);
    						continue;
    					}
    					else
    					{
    						flag = 0;
    						while((data = Pop_giveway(&gw)).num != EMPTY.num)              //
    						{
    							Push_park(&p,data.num,data.time);
    						}
    						data1 = GetPop_wait(&wq) ;
    						if(data1 != EMPTY.num)
    						{
    							Push_park(&p,data1,get_time());
    							count++;
    						}
    						break;
    					}
    				}
    				
    				
    				if(flag)
    				{
    					printf("\n\n\n");
    					printf("\t\t\t对不起，车号为%d的车不在停车场\n",tab);
    					while((data = Pop_giveway(&gw)).num != EMPTY.num)                //
    					{
    						Push_park(&p,data.num,data.time);
    					}
    				}
    				else
    				{
    					printf("\n\n\n");
    					printf("\t\t\t恭喜您成功的开走了车号为%d的这辆车\n", tab);
    					count--;
    				}
    				
    				printf("\n\n\n\n\n\n");
    				printf("按下任意键返回:");
    				scanf("%s", i);
    				break;
    		
    				
    			}
    			case 'C' :
    			{
    				system("clear");
    				printf("\n\n\n\n\n\n");
    				printf("车号：   ");
    				for(j = 0; j < count; j++)
    				{
    					dat[j] = Pop_park(&p);
    					printf("%d \t", dat[j].num);
    				}
    				
    				printf("\n时间：   ");
    				for(j = 0; j < count; j++)
    				{
    					printf("%d \t",get_time() - dat[j].time);
    				}
    				
    				for(j = count - 1; j >= 0; j--)
    				{
    					Push_park(&p,dat[j].num,dat[j].time);
    				}
    				
    				printf("\n\n\n\n\n\n");
    				printf("按下任意键返回:");
    				scanf("%s", i);
    				break;
    			}
    			case 'D' :
    			{
    				x = 0;
    				system("clear");
    				printf("\n\n\n\n\n\n");
    				printf("\t\t\tHope to you next time!");
    				system("clear");
    				printf("\n\n\n\n");
    				printf("\t\t\tBYE BYE!!!\n");
    				sleep(3);
    				system("clear");
    				
    				break;
    			}
    			default :
    			{
    				printf("\n\n");
    				system("clear");
    				printf("\n\n\n\n\n\n");
    				printf("\t\t请输入A、B、C或D!\n");
    				printf("\n\n");
    				printf("按下任意键返回:");
    				scanf("%s", i);
    				
    				break;
    			}
    		}
    	}
    	
    	return 0;
    }