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cscan.c
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cscan.c
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#include <stdio.h>
#include <stdlib.h>
int n, m, i, j, h, p, temp, k, total = 0;
int t[100], label[100], diff; // Declare variables and arrays
void main()
{
printf("ENTER THE NUMBER OF TRACKS : ");
scanf("%d", &n); // Get the number of tracks from the user
printf("ENTER THE HEAD POINTER POSITION : ");
scanf("%d", &h); // Get the initial head pointer position from the user
printf("ENTER THE TRACKS TO BE TRAVERSED : ");
for (i = 0; i < n; i++)
{
scanf("%d", &t[i]); // Get the tracks to be traversed from the user
}
t[n + 2] = 199; // Add boundary tracks to the array
t[n + 1] = 0;
t[n] = h;
n = n + 3;
for (i = 0; i < n; i++)
{
for (j = 0; j < n - i - 1; j++)
{
if (t[j] > t[j + 1]) // Sort the tracks in ascending order
{
temp = t[j];
t[j] = t[j + 1];
t[j + 1] = temp;
}
}
}
for (i = 0; i < n; i++)
{
if (t[i] == h)
{
k = i;
break;
}
}
for (i = k; i < n; i++, p++)
{
label[p] = t[i];
} // Traverse the tracks in the appropriate direction (Assuming Right)
for (i = 0; i <= k - 1; i++, p++)
{
label[p] = t[i];
} // Traverse the tracks in the remaining direction
printf("TRAVERSED ORDER : ");
for (i = 0; i < p; i++)
{
printf("%d => ", label[i]); // Print the order of traversed tracks
}
for (total = 0, j = 0; j < p - 1; j++)
{
diff = abs(label[j + 1] - label[j]); // Calculate the difference between the current and next track
total = total + diff; // Calculate the total head movements
}
printf("\b\b\b. \nTOTAL HEAD MOVEMENTS : %d\n", total); // Print the total head movements
}