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Delete 可供参考资料_zyx/银行排队问题.cpp

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zyx99 2024-09-24 15:33:34 +08:00
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可供参考资料_zyx/银行排队问题.cpp
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//问题2-2
#include <iostream>
#include <ctime>
#include <stdlib.h>
#include <time.h>
#include <windows.h>
using namespace std;
#define Status int
#define OVERFLOW 2
#define ERROR 1
#define OK 0;
typedef int QElemType;
int queue_number[10] = { 0 };//queue_number记录队列人数
int i, j = 0;//i用于客户计数，j用于窗口计数
int no = 0;//no用于记录客户序号，其中第一位客户的序号为1
int time_length = 0;//time_length记录模拟程序运行时长
int window_number = 0;
typedef struct QNode
{
int no;//序号
double amount;//总金额
double remain_amount;//未取金额（不计当前轮）
struct QNode* next;
}QNode, * QueuePtr;
typedef struct
{
QueuePtr front; //队头指针
QueuePtr rear; //队尾指针
}LinkQueue;
Status InitQueue(LinkQueue& Q)
{
Q.front = Q.rear = (QueuePtr)malloc(sizeof(QNode));
if (!Q.front) exit(OVERFLOW);
Q.front->next = NULL;
return OK;
}
Status DestroyQueue(LinkQueue& Q)
{
while (Q.front)
{
Q.rear = Q.front->next;
free(Q.front);
Q.front = Q.rear;
}
return OK;
}
Status QueueEmpty(LinkQueue Q)
{
return (Q.front == Q.rear);
}
Status GetHead(LinkQueue Q, int& e1, double& e2, double& e3)
{
if (Q.front == Q.rear) return ERROR;
e1 = Q.front->next->no;
e2 = Q.front->next->amount;
e3 = Q.front->next->remain_amount;
return OK;
}
Status EnQueue(LinkQueue& Q, int& e1, double& e2, double& e3)
{
QueuePtr p;
p = (QueuePtr)malloc(sizeof(QNode));
if (!p) exit(OVERFLOW);
p->no = e1;
p->amount = e2;
p->remain_amount = e3;
p->next = NULL;
Q.rear->next = p;
Q.rear = p;
return OK;
}
Status DeQueue(LinkQueue& Q, int& e1, double& e2, double& e3)
{
if (Q.front == Q.rear) return ERROR;
QueuePtr p;
p = Q.front->next;
e1 = p->no;
e2 = p->amount;
e3 = p->remain_amount;
Q.front->next = p->next;
if (Q.rear == p) Q.rear = Q.front;
delete p;
return OK;
}
int MinQueue()
{
int s = 10000, k = 0, temp;
for (k = 0;k < window_number;k++)
{
if (queue_number[k] < s)
{
temp = k;
s = queue_number[k];
}
}
return temp;
}
int MaxQueue()
{
int s = -1, k = 0, temp;
for (k = 0;k < window_number;k++)
{
if (queue_number[k] > s)
{
temp = k;
s = queue_number[k];
}
}
return temp;
}
void Remove(LinkQueue& Q)//检查第一个人是否已取完。注意判断队列是否为空。
{
if (!QueueEmpty(Q))
{
if (Q.front->next->remain_amount <= 1e-8)
{
int e1 = -1;
double e2 = -1, e3 = -1;
DeQueue(Q, e1, e2, e3);
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_INTENSITY | FOREGROUND_GREEN);//设置绿色
cout << "第" << (double)i / 10 + 0.1 << "秒时" << j + 1 << "号窗口"
<< "第" << e1 << "位客户完成业务，取走共" << e2 << "万元。" << endl;
queue_number[j]--;
}
}
}
void Join(LinkQueue* q)
{
int a = rand() % 60;
//a的值在0-60之间随机分布，只有当a=0到window_number-1时才产生新客户
//平均每6秒产生window_number个客户，与窗口数量对应
if (a < window_number)
{
no++;
double b = double(rand() % 191) / 10 + 1;//b的值在1-20之间随机分布(精度0.1)，代表用户取钱的金额数（单位：万元）
int m = MinQueue();
EnQueue(q[m], no, b, b);
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN);//设置红色和绿色相加
cout << "第" << (double)i / 10 + 0.1 << "秒时第" << no << "位客户进入窗口"
<< m + 1 << "队列，需取" << b << "万元。" << endl;
queue_number[m]++;
}
}
void ChangeQuene(LinkQueue* q)
{
int min = MinQueue(), max = MaxQueue();
while (queue_number[max] - queue_number[min] >= 2)
{
int e1;
double e2, e3;
DeQueue(q[max], e1, e2, e3);
EnQueue(q[min], e1, e2, e3);
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_INTENSITY | FOREGROUND_BLUE);//设置蓝色
cout << "第" << e1 << "位客户从窗口" << max + 1 << "队列调整到窗口" << min + 1 << "队列" << endl;
queue_number[min]++;
queue_number[max]--;
min = MinQueue();
max = MaxQueue();
}
}
void Withdraw(LinkQueue& Q)
{
if (!QueueEmpty(Q) && i != time_length)
{
Q.front->next->remain_amount -= 0.2;//每0.1秒取走0.2万
}
}
void Undone(LinkQueue& Q)
{
while (!QueueEmpty(Q))
{
int e1 = -1;
double e2 = -1, e3 = -1;
DeQueue(Q, e1, e2, e3);
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE);//设置绿色和蓝色相加
cout << "窗口" << j + 1 << "队列第" << e1 <<
"位客户未完成业务，未取共" << e2 << "万元。" << endl;
}
}
int main()
{
cout << "请输入模拟程序运行时长（单位：秒）（1-300之间的整数）：" << endl;
//time_length = 120;
cin >> time_length;
while (time_length <= 0 || time_length > 300)
{
cout << "您输入的时间不符合要求，请重新输入：";
cin >> time_length;
}
cout << "请输入银行窗口数（1-10之间的整数）：" << endl;
cin >> window_number;
while (window_number <= 0 || window_number > 10)
{
cout << "您输入的窗口数不符合要求，请重新输入：";
cin >> window_number;
}
LinkQueue* q = (LinkQueue*)malloc(window_number * sizeof(LinkQueue));
//队列初始化
for (j = 0;j < window_number;j++)
{
InitQueue(q[j]);
}
srand(time(nullptr));//设置随机数种子
//核心代码
for (i = 0;i <= time_length * 10;i++)//每0.1秒循环一次，直到到达预定时间
{
//先检查第一个人是否已取完。注意判断队列是否为空
for (j = 0;j < window_number;j++)
{
Remove(q[j]);
}
//再把新客户加到人最少的队伍
Join(q);
//再判定是否有客户需要重新选择队列
ChangeQuene(q);
//再给当前队伍第一位取钱，注意判断队列是否为空
//注意i=time_length时取钱业务已经停止
for (j = 0;j < window_number;j++)
{
Withdraw(q[j]);
}
Sleep(93);
//100单位为毫秒，即0.1秒。考虑到程序运行时间，将100改为93
//由于Sleep()函数的精度不高，因此循环间隔不能太小
}
//程序结束前，输出未取完钱的人的情况
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_INTENSITY);//设置颜色，没有添加颜色，故为原色
cout << endl << "取钱业务结束。" << endl << endl;
for (j = 0;j < window_number;j++)
{
Undone(q[j]);
}
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
FOREGROUND_INTENSITY);//设置颜色，没有添加颜色，故为原色
return 0;
}