#include <stdio.h>
#include <stdlib.h>
int main(){
int i, init, np, dir, temp, size, totalDisk=0,
req[50];
printf("Enter the number of process : ");
scanf("%d", &np);
printf("Enter the request sequence : ");
for(i=0; i<np; i++){
scanf("%d", &req[i]);}
printf("Enter disk size : ");
scanf("%d", &size);
size -= 1;
printf("Enter the initial disk position : ");
scanf("%d", &init);
for(i=0; i<np; i++){
totalDisk += abs(req[i]-init);
init = req[i];}
printf("The total disk movement : %d\n",
totalDisk);
return 0;
}