C Program to print towers of hanoi - c programs

//write a c program to print towers of hanoi
//Implement towers of hanoi using c language

what is towers of hanoi problem?

It consists of three rods, and a number of disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top, thus making a conical shape. The objective of the puzzle is to move the entire stack to another rod, obeying the following rules: Only one disk may be moved at a time.
Each move consists of taking the upper disk from one of the rods and sliding it onto another rod, on top of the other disks that may already be present on that rod.
No disk may be placed on top of a smaller disk.


//C Program to print towers of hanoi

#include <conio.h>
#include <stdio.h>
void main()
{
void hanoi(char,char,char,int);
char t1='A',t2='B',t3='C';
int n;
clrscr();
printf("\n Enter the no. of disks on Tower A:");
scanf("%d",&n);
if(n<1)
{
printf("\n Nothing to move");
}
else
hanoi(t1,t2,t3,n);
getch();
}
void hanoi(char t1,char t2,char t3,int n)
{
static int step=0;
step++;
printf("\n %c %c %c %d",t1,t2,t3,n);
if(n==1)
{
printf("\n Move top disk from Tower %c ----> %c",t1,t2);
return;
}
hanoi(t1,t3,t2,n-1);
printf("\n %c %c %c %d",t1,t2,t3,n);
printf("\n Move top disk from Tower %c ----> %c",t1,t2);
printf("\n %c %c %c %d",t1,t2,t3,n);
hanoi(t3,t2,t1,n-1);
printf("\n %c %c %c %d steps=%d",t1,t2,t3,n,step);
}