#include <stdio.h>

/* Note: Program assumes years are in the same century. */

typedef enum {false = -1,true = 1} bool;

struct date {

int month, day, year;

};

int compare_dates(struct date *d1, struct date *d2);

void put_date(struct date *d);

int main(void)

{

struct date *d1, *d2;

printf("Enter first date (mm/dd/yy): ");

printf("enter month");

printf("Enter second date (mm/dd/yy): ");

/* for you to complete */

if (compare_dates(d1, d2) < 0) {

put_date(d1);

printf(" is earlier than ");

put_date(d2);

printf("\n");

} else {

put_date(d2);

printf(" is earlier than ");

put_date(d1);

printf("\n");

}

return 0;

}

/*

*if date 1 is earlier than date 2 this function should

*return an int that should be treated as a bool with 1 being true and -1 being false

*algorithm:

* if date1 year is less than date2's year and

* date1's month is less than date2's month and

* date1's day is less than date2's day

* then return true

* otherwise return false

* EDIT:

*now uses pointers

*/

int compare_dates(struct date *ptr_d1, struct date *ptr_d2){

if(d1->year>d2->year){

return false;

}

if(d1->month>d2->month){

return false;

}

if(d1->day>d2->day){

return false;

}

return true;

}

void put_date(struct date *ptr_d)

{

printf("%d/%d/%.2d", ptr_d->month, ptr_d->day, ptr_d->year);

}