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