why m getting hearts and I in the output of this program of tower of hanoi

Question

#include<stdio.h>

#include<conio.h>

void tof(int n,char source,char temp,char dest);

void main()

{

int n;                /* n is the no. of disks*/

char a,b,c;           //source is a,temp is b, dest is c

printf("enter the no. of disks\n");

scanf("%d",&n);

tof(n,a,b,c);

getch();

}

void tof(int n,char source,char temp,char dest)

{

if(n==1)

{

printf("move the disk %d from %c to %c\n",n,source,dest);

return;

}

tof(n-1,source,dest,temp);

printf("move %d disks from %c to %c\n",n,source,dest);

tof(n-1,temp,source,dest);

}

Answer 1

what does this program do

Answer 2

it solves tower of hanoi