Стеки, списки, структуры

Include stdio.h
#include stdlib.h
#include string.hstruct address {
char name[30];
char street[40];
char city[20];
char state[3];
char ZIP[11];
struct address *next;
struct address *prior;
};struct address *start;
struct address *last;
struct address *find(char *);void enter(void), search(void), save(void);
void load(void), list(void);
void mldelete(struct address **, struct address **);
void dls_store(struct address *i, struct address **start,
struct address **last);
void inputs(char *, char *, int), display(struct address *);
int menu_select(void);int main(void)
{
.
}//================ Vibor deystvija ================//int menu_select(void)
{
.
}//================ Vvod imeni i adresov ================//
void enter(void)
{
.
}//================ Funkcija vvoda stroki ================//
void inputs(char *prompt, char *s, int count)
{
.
}//================ sozdanie dvusvjaznogo uporjadochenogo spiska ================//
void dls_store(
struct address *i,
struct address **start,
struct address **last
)
{
.
}//================ Udalenie elementa iz spiska ================//
void mldelete(struct address **start, struct address **last)
{
.
}//================ ================//
.