int main (void) {
/* this is the year that is inputed */
int year;
/* this is to check whether the input has reached an end */
int end;
/* this is the day that calculate easter date returns */
int day;
/* this is the function prototype for calculate_easter date */
int calculate_Easter_date (int year);
while(1) {
end = scanf("%d", &year);
if (end == EOF) {
break;
}
if ((year > 1581) && (year < 39999)) {
day = calculate_Easter_date(year);
if (day > 0) {
printf("%d - April %d\n", year, day);
}
else {
day = (-1) * day;
printf("%d - March %d\n", year, day);
}
}
else {
fprintf(stderr, "year out of range");
}
}
return 0;
}
int main(void)
{
/*This program computes the dates of easter of a given year.
* It only accepts input between 1582 to 39999.
* If input is out of range, an error message will be printed.
* It will also double check whether the answer is correct using
* Zeller's Congruence.
*/
int yr; /* the year imputed */
int date;
while(1)
{
if (scanf("%d", &yr)==EOF)
{
break;
}
date = calculate_Easter_date(yr);
if (date > 0)
{
assert (is_Sunday(date, yr) == 1);
printf("%d - April %d\n", yr, date);
}
else if (date < 0)
{
assert (is_Sunday(date, yr) == 1);
printf("%d - March %d\n", yr, -date);
}
else
{
fprintf(stderr, "Invalid Year Input\n");
}
}
return 0;
}
