Tower Of Hanoi

#include<stdio.h>
#include<conio.h>

int tower(int,char,char,char);

main()
{
 char source,temp,dest;
 int num;
 
 printf("ENTER THE NUMBER OF DISK FOR 'TOWER OF HANOI'\n");
 scanf("%d",&num);
 
 tower(num,'A','B','C');
 
}
int tower(int num,char source,char temp,char dest)
{
 if(num==1)
 {
  printf("move %d from %c to %c\n\n",num,source,dest);
 }
 else
 {
  tower(num-1,source,dest,temp);
  printf("move %d from %c to %c\n\n",num,source,dest);
  tower(num-1,temp,source,dest);
 }
}