C > Tours de Hanoï

#include <stdio.h>
#define FROM 1
#define TO 3
#define USING 2
void hanoi(int n, int from, int to, int using)
{
if(n>0)
{
hanoi(n-1, from, using, to);
printf("deplace %d --> %d\n", from, to);
hanoi(n-1, using, to, from);
}
}
int main(int argc, char **argv)
{
int n;
if (argc !=2)
{
fprintf(stderr, "usage: %s NombreDeDisques \n", argv[0]);
exit (1);
}
n = atoi (argv[1]);
hanoi(n, FROM, TO, USING);

return 0;
}