Fcfs Disk Scheduling Program In C Code Example

Example: fcfs disk scheduling in c

/* This code is contributed by : Tanishq Vyas (github : https://github.com/tanishqvyas) */   #include <stdlib.h> #include <stdio.h> #include <unistd.h>  //Header file for sleep() #include <pthread.h>    int main(int argc, char const *argv[]) {     int range, queue_size, cur_pos, cur_seek_time, total_seek_time = 0;          printf("Enter the max range of disk : ");     scanf("%d", &range);     printf("Enter the queue size : ");     scanf("%d", &queue_size);      int req_queue[queue_size];     printf("Enter the queue of disk portions to be read : ");     for (int i = 0; i < queue_size; i++)     {         scanf("%d ", &req_queue[i]);     }     int hold;     scanf("%d", &hold);     printf("Enter the initial head position : ");     scanf("%d", &cur_pos);       // FCFS Disk Schedueling     for (int i = 0; i < queue_size; i++)     {         cur_seek_time = abs(req_queue[i] - cur_pos);         printf("Disk head moves from %d to %d with seek time %d\n", cur_pos, req_queue[i], cur_seek_time);         cur_pos = req_queue[i];         total_seek_time += cur_seek_time;     }     printf("Total Seek Time is : %d\n", total_seek_time);     float avg_seek_time = total_seek_time/(float)queue_size;     printf("Average Seek Time is %.6f\n", +avg_seek_time);               return 0; }