SystemsProgrammingAndOperatingSystem/Codes/priority.cpp

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

struct Process {
    int id;
    int burstTime;
    int priority;
    int waitingTime;
    int turnaroundTime;
};

bool comparePriority(Process a, Process b) {
    return a.priority > b.priority;
}

void priorityScheduling(vector<Process> &processes) {
    int n = processes.size();
    
    sort(processes.begin(), processes.end(), comparePriority);

    processes[0].waitingTime = 0;
    processes[0].turnaroundTime = processes[0].burstTime;
for (int i = 1; i < n; ++i) {
        processes[i].waitingTime = 0;
        for (int j = 0; j < i; ++j) {
            processes[i].waitingTime += processes[j].burstTime;
        }
        processes[i].turnaroundTime = processes[i].waitingTime + processes[i].burstTime;
    }
    
    cout << "Process ID\tBurst Time\tPriority\tWaiting Time\tTurnaround Time\n";
    for (const auto &p : processes) {
        cout << p.id << "\t\t" << p.burstTime << "\t\t" << p.priority
             << "\t\t" << p.waitingTime << "\t\t" << p.turnaroundTime << '\n';
    }
}

int main() {
    vector<Process> processes = {
        {1, 6, 2, 0, 0},
        {2, 8, 1, 0, 0},
        {3, 7, 3, 0, 0},
        {4, 3, 4, 0, 0}
    };
    
    priorityScheduling(processes);

    return 0;
}