#ifndef MM_HELP_H
#define MM_HELP_H

/* Given a secret code g1 and a guess g2 returns the number black in *b
 * and the number white in *w. Note that theses values do not change if
 * g1 and g2 are swapped.
 */
void bw (char * g1, char * g2, int * b, int * w);

struct guess {
	char g[20];
	struct guess * next;
};

/* Returns the list of all possible guesses for the given parameters or
 * NULL if their number is too large. Each guess is allocated via malloc.
 * The caller must free the memory once it is no longer needed.
 */
struct guess * get_guesses (int col, int len, int unique);

#endif