#include <iostream.h>


// The following is necessary if and only if you're using an older
// compiler which doesn't recognize type "bool".  If used in combination
// with a compiler which does recognize "bool", an error will result.
// typedef enum { false = 0, true = 1 } bool;


// returns true if the year is a leap year
bool year_is_leap (int year) {

  return ((year % 4) == 0) &&
	      (((year % 100) != 0) || ((year % 400) == 0));
}


int days_in_year (int year) {

  if (year_is_leap(year)) {
    return 366;
  } else {
    return 365;
  }

}


// January = month 1, February = month 2, etc.
int days_in_month (int month, int year) {

  const int days_table [12] =
     { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

  // look after the special case
  if ((month == 2) && year_is_leap(year)) {
    return 29;
  }

  return days_table[month - 1];

}