排队论多服务台损失制排队模型 C++代码

以下是一个排队论多服务台损失制排队模型的C++代码示例：

#include <iostream>
#include <queue>
#include <vector>

using namespace std;

const int MAX_CUSTOMERS = 100;
const int MAX_SERVERS = 10;

struct Customer {
    int arrivalTime;
    int serviceTime;
    int serverId;

    Customer(int _arrivalTime, int _serviceTime) : arrivalTime(_arrivalTime), serviceTime(_serviceTime), serverId(-1) {}
};

struct Server {
    int id;
    int serviceTime;
    int remainingTime;

    Server(int _id, int _serviceTime) : id(_id), serviceTime(_serviceTime), remainingTime(0) {}
};

int main() {
    // 输入参数
    int numServers, maxQueueSize, numCustomers;
    int arrivalTimes[MAX_CUSTOMERS], serviceTimes[MAX_CUSTOMERS];
    cout << "输入服务台数量、队列最大长度、顾客数量：" << endl;
    cin >> numServers >> maxQueueSize >> numCustomers;
    cout << "输入每个顾客的到达时间和服务时间：" << endl;
    for (int i = 0; i < numCustomers; i++) {
        cin >> arrivalTimes[i] >> serviceTimes[i];
    }

    // 初始化服务台和队列
    vector<Server> servers;
    queue<Customer> queue;
    for (int i = 0; i < numServers; i++) {
        servers.emplace_back(i, 0);
    }

    // 模拟
    int currentTime = 0;
    int totalWaitTime = 0;
    int numLostCustomers = 0;
    int numServedCustomers = 0;
    int nextCustomerIndex = 0;
    while (numServedCustomers + numLostCustomers < numCustomers) {
        // 将到达时间 <= 当前时间的顾客加入队列
        while (nextCustomerIndex < numCustomers && arrivalTimes[nextCustomerIndex] <= currentTime) {
            if (queue.size() < maxQueueSize) {
                queue.emplace(arrivalTimes[nextCustomerIndex], serviceTimes[nextCustomerIndex]);
            } else {
                numLostCustomers++;
            }
            nextCustomerIndex++;
        }

        // 将服务时间到达的服务台加入队列
        for (Server& server : servers) {
            if (server.remainingTime == 0) {
                if (!queue.empty()) {
                    Customer customer = queue.front();
                    queue.pop();
                    server.serviceTime = customer.serviceTime;
                    server.remainingTime = customer.serviceTime;
                    server.id = customer.serverId;
                    totalWaitTime += currentTime - customer.arrivalTime;
                    numServedCustomers++;
                }
            } else {
                server.remainingTime--;
            }
        }

        // 更新时间
        currentTime++;
    }

    // 输出结果
    cout << "服务台数量：" << numServers << endl;
    cout << "队列最大长度：" << maxQueueSize << endl;
    cout << "顾客数量：" << numCustomers << endl;
    cout << "丢失的顾客数量：" << numLostCustomers << endl;
    cout << "服务的顾客数量：" << numServedCustomers << endl;
    cout << "平均等待时间：" << (double)totalWaitTime / numServedCustomers << endl;

    return 0;
}

该代码实现了一个排队论多服务台损失制排队模型。输入参数包括服务台数量、队列最大长度和顾客数量，以及每个顾客的到达时间和服务时间。程序通过模拟来计算丢失的顾客数量、服务的顾客数量和平均等待时间，并将结果输出到控制台。