cpu scheduling algorithms or technique

FCFS CPU scheduling algorithm in C

#include <stdio.h>



int main() {

int n, i;

int bt[20], wt[20], tat[20];

int total_wt = 0, total_tat = 0;



printf("Enter the number of processes: ");

scanf("%d", &n);



for (i = 0; i < n; i++) {

printf("Enter burst time for Process %d: ", i + 1);

scanf("%d", &bt[i]);

}



wt[0] = 0;

for (i = 1; i < n; i++) {

wt[i] = bt[i - 1] + wt[i - 1];

}



printf("\nProcess\tBurst Time\tWaiting Time\tTurnaround Time\n");

for (i = 0; i < n; i++) {

tat[i] = bt[i] + wt[i];

total_wt += wt[i];

total_tat += tat[i];

printf("P%d\t%d\t\t%d\t\t%d\n", i + 1, bt[i], wt[i], tat[i]);

}

, printf("\nAverage Waiting Time: %.2f", (float)total_wt / n);

printf("\nAverage Turnaround Time: %.2f\n", (float)total_tat / n);



return 0;

}

Enter the number of processes: 3

Enter burst time for Process 1: 5

Enter burst time for Process 2: 3

Enter burst time for Process 3: 8



Process Burst Time Waiting Time Turnaround Time

P1 5 0 5

P2 3 5 8

P3 8 8 16



Average Waiting Time: 4.33

Average Turnaround Time: 9.67



Priority Scheduling in C

#include <stdio.h>



int main() {

int n, i, j;

int bt[20], p[20], pt[20], wt[20], tat[20];

int total_wt = 0, total_tat = 0;



printf("Enter the number of processes: ");

scanf("%d", &n);