#include <bits/stdc++.h>
using namespace std;

struct Process {
    int id;           // Process ID
    int burstTime;    // Burst Time
    int arrivalTime;  // Arrival Time
};

void findWaitingTime(Process processes[], int n, int waitingTime[]) {
    waitingTime[0] = 0; // Waiting time for the first process is always 0
    
    for (int i = 1; i < n; i++) {
        waitingTime[i] = processes[i - 1].burstTime + waitingTime[i - 1];
    }
}

void findTurnaroundTime(Process processes[], int n, int waitingTime[], int turnaroundTime[]) {
    for (int i = 0; i < n; i++) {
        turnaroundTime[i] = processes[i].burstTime + waitingTime[i];
    }
}

void findAverageTime(Process processes[], int n) {
    int waitingTime[n], turnaroundTime[n];
    int totalWaitingTime = 0, totalTurnaroundTime = 0, totalResponseTime = 0;

    // Calculate waiting times for each process
    findWaitingTime(processes, n, waitingTime);

    // Calculate turnaround times for each process
    findTurnaroundTime(processes, n, waitingTime, turnaroundTime);

    // Calculate total waiting, turnaround, and response times
    for (int i = 0; i < n; i++) {
        totalWaitingTime += waitingTime[i];
        totalTurnaroundTime += turnaroundTime[i];
        totalResponseTime += waitingTime[i];  // Response Time = Waiting Time in FCFS
    }

    // Calculate and display averages
    float averageWaitingTime = (float)totalWaitingTime / n;
    float averageTurnaroundTime = (float)totalTurnaroundTime / n;
    float averageResponseTime = (float)totalResponseTime / n;

    cout << "Average Turnaround Time: " << averageTurnaroundTime << endl;
    cout << "Average Waiting Time: " << averageWaitingTime << endl;
    cout << "Average Response Time: " << averageResponseTime << endl;
}

int main() {
    Process processes[] = {{1, 24, 0}, {2, 3, 0}, {3, 3, 0}};
    int n = sizeof(processes) / sizeof(processes[0]);

    findAverageTime(processes, n);
    return 0;
}