[dovelet][함수] 13일의 금요일 (friday)

dovelet    8 단계 함수 

13일의 금요일 (friday)

http://59.23.113.171/30stair/friday/friday.php?pname=friday

 

#include <stdio.h>
 
int monthend[13] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
int day[7];
 
int main(void)
{
    int n;
    int year, month, date, count = 2;
 
    scanf("%d", &n);
 
    for (year = 1900; year < 1900 + n; year++)    {
        for (month = 1; month <= 12; month++)    {
 
            if ((month == 2) && ((year % 4 == 0 && year % 100 != 0) || (year % 4 == 0 && year % 400 == 0)))    {
                monthend[2] = 29;
            }
            else    monthend[2] = 28;
 
            for (date = 1; date <= monthend[month]; date++)    {
                if (date == 13)    {
                    day[count % 7]++;
                }
                count++;
            }
        }
    }
 
    for (int i = 0; i < 7; i++)    {
        printf("%d ", day[i]);
    }
 
    printf("\n");
 
    return 0;
}