File allocation strategies----- Linked file Allocation Method

/* 2.simulate all File allocation strategies
    a. Linked file Allocation Method               */


#include<stdio.h>
#include<conio.h>
#include<string.h>
int n;
void main()
{
    int b[20],b1[20],i,j,blocks[20][20],sz[20];
    char F[20][20],S[20],ch;
    int sb[20],eb[20],x;
    clrscr();
    printf("\n Enter no. of Files ::");
    scanf("%d",&n);
    for(i=0;i<n;i++)
    {
        printf("\n Enter file %d name ::",i+1);
        scanf("%s",&F[i]);
        printf("\n Enter file%d size(in kb)::",i+1);
        scanf("%d",&sz[i]);
        printf("\n Enter blocksize of File%d(in bytes)::",i+1);
        scanf("%d",&b[i]);
    }
    for(i=0;i<n;i++)
    {
        b1[i]=(sz[i]*1024)/b[i];
        printf("\n Enter Starting block of file%d::",i+1);
        scanf("%d",&sb[i]);
        printf("\n Enter Ending block of file%d::",i+1);
        scanf("%d",&eb[i]);
        printf("\nEnter blocks for file%d::\n",i+1);
        for(j=0;j<b1[i]-2;)
        {
            printf("\n Enter the %dblock ::",j+1);
            scanf("%d",&x);
            if(x>sb[i]&&x<eb[i])
            {
                blocks[i][j]=x;
                j++;
            }
            else
                printf("\n Invalid block::");
        }
    }
    do
    {
        printf("\nEnter the Filename ::");
        scanf("%s",&S);
        for(i=0;i<n;i++)
        {
            if(strcmp(F[i],S)==0)
            {
                printf("\nFname\tFsize\tBsize\tNblocks\tBlocks\n");
                printf("\n---------------------------------------------\n");
                printf("\n%s\t%d\t%d\t%d\t",F[i],sz[i],b[i],b1[i]);
                printf("%d->",sb[i]);
                for(j=0;j<b1[i]-2;j++)
                    printf("%d->",blocks[i][j]);
                printf("%d->",eb[i]);
            }
        }
        printf("\n---------------------------------------------\n");
        printf("\nDo U want to continue (Y:n)::");
        scanf("%d",&ch);
    }while(ch!=0);
}
/*Input and Output;-

 Enter file1 size(in kb)::1

 Enter blocksize of File1(in bytes)::512

 Enter file 2 name ::sudee

 Enter file2 size(in kb)::1

 Enter blocksize of File2(in bytes)::1024

 Enter Starting block of file::1100

 Enter Ending block of file::1600

 Enter blocks for file1::

 Enter the 1block ::102

 Enter the 2block ::104

 Enter Starting block of file::2200

 Enter Ending block of file::2500

 Enter blocks for file2::

 Enter the 1block ::201

 Enter the Filename ::daya

Fname   Fsize   Bsize   Nblocks Blocks
---------------------------------------------
daya    1       512     2       100->102->104->600->
---------------------------------------------

Do U want to continue ::(Y:n)1

Enter the Filename ::sudee

Fname   Fsize   Bsize   Nblocks Blocks
---------------------------------------------
sudee   1       1024    1       200->201->500->
---------------------------------------------
Do U want to continue ::(Y:n)0
*/