program for Dining philosophy problem

program for Dining philosophy problem
===============================================================

#include
#include
#include
#include


char fn2[20];

main()
{
 int c;
 clrscr();
 do{
 printf("\n\t\tMain Menu\n-------------------------------\n");
 printf("1.Copy a File\n2.Move a File\n3.Exit\n");
 scanf("%d",&c);
 switch(c)
 {
  case 1:
   copy_file();
   break;

  case 2:
   move_file();
   break;

  case 3:
   exit(0);
 }
 }while(c<=3);
 getch();
 return 0;
}



copy_file()
{
 FILE *f1,*f2;
 char ch,s[10],fn1[20];
 int a;
 printf("\nAre u see the privious files(1/0)?");
 scanf("%d",&a);
 if(a==1)
 print_file();
 printf("Enter the source file name:");
 scanf("%s",&fn1);
 printf("Enter the Destination file name:");
 scanf("%s",&fn2);
 f1=fopen(fn1,"r");
 if(f1==NULL)
  printf("Can't open the file");
 else {
  f2=fopen(fn2,"w");
  while((ch=getc(f1))!=EOF)
   putc(ch,f2);
  printf("One File Copied");
  fclose(f2);
 }
  fclose(f1);
  return 0;
 }


 move_file()
 {
 FILE *f1,*f2;
 char ch,s[10],fn1[20];
 int a;
 printf("\nAre u see the privious files(1/0)?");
 scanf("%d",&a);
 if(a==1)
 print_file();
 printf("Enter the source file name:");
 scanf("%s",&fn1);
 printf("Enter the Destination file name:");
 scanf("%s",&fn2);

f1=fopen(fn1,"r");
 if(f1==NULL)
  printf("Can't open the file");
 else {
  f2=fopen(fn2,"w");
  while((ch=getc(f1))!=EOF)
   putc(ch,f2);
  printf("One File moved");
  fclose(f2);
  remove(fn1);
 }
  fclose(f1);
  return 0;
 }


 print_file()
 {
  struct ffblk ffblk;
  int d,p=0;
  char ch;
  d=findfirst("*.*",&ffblk,0);
  while(!d)
  {
  printf("%s\n",ffblk.ff_name);
  d=findnext(&ffblk);
  p=p+1;
  if(p>=20)
  {
   printf("Press any key to continue");
   getchar();
   p=0;
  }
 }
 return 0;
}

===========================================================

SAMPLE INPUT AND OUTPUT:

Philos name      Right fork     Left fork
-------------------------------------------------------------------
        0               0               1
        1               1               2
        2               2               3
        3               3               4
        4               4               0
--------------------------------------------------------------------
Enter the Two Eating Philosophers number:1 3
Round 1
--------------------------
Philosopherre 1 is eating with rhf=1 and  lhf=2.
Philosopherre 3 is eating with rhf=3 and lhf=4.
Round  2
------------------------
Philosopherre 0 is eating with rhf=0 and  lhf=1.
Philosopherre 2 is eating with rhf=2 and   lhf=3.
Round  4
------------------------
Philosopherre 2 is eating with rhf=2 and  lhf=3.
Philosopherre 4 is eating with rhf=4 and   lhf=0.

        Philos name      Right fork     Left fork
-------------------------------------------------------------------
        0               0               1
        1               1               2
        2               2               3
        3               3               4
        4               4               0
--------------------------------------------------------------------
Enter the Two Eating Philosophers number:1 4
Round 1
--------------------------
Philosopherre 1 is eating with rhf=1 and  lhf=2.
Philosopherre 4 is eating with rhf=4 and lhf=0.
Round  2
------------------------
Philosopherre 0 is eating with rhf=0 and  lhf=1.
Philosopherre 2 is eating with rhf=2 and   lhf=3.
Round  4
------------------------
Philosopherre 2 is eating with rhf=2 and  lhf=3.
Philosopherre 4 is eating with rhf=4 and   lhf=0.