第六天、打渔晒网问题

/*第六天、打渔晒网问题*/
#include <stdio.h>
#include <stdlib.h>

int leap(int a)
{
    if((a % 4 == 0)&&(a % 100 != 0) || (a % 400 == 0))
        return 1;
    else
        return 0;
}
int number(int year,int month,int day)
{
    int result = 0,i,j,k;
    int average_year[12] = {31,28,31,30,31,30,31,31,30,31,30,31};    //平年
    int leap_year[12] = {31,29,31,30,31,30,31,31,30,31,30,31};        //闰年
    if(leap(year) == 1)
    {
        for(i = 0;i < month - 1;i++)
            result += leap_year[i];
        result += day;
    }
    else
    {
        for(i = 0;i < month - 1;i++)        
            result += average_year[i];
        result += day;
    }
    for(j = 2011;j < year;j++)
        if(leap(year) == 1)
            result += 366;
        else
            result += 365;
    return result;
}
void main(void)
{
    int year,month,day,days;
    printf("请输入要查询的年月日，例如2011-10-10\n");
    scanf("%d-%d-%d",&year,&month,&day);
    days = number(year,month,day);
    if((days % 5) < 4 && (days % 5) > 0)
        printf("%d年%d月%d日:渔夫在打渔\n",year,month,day);
    else
        printf("%d年%d月%d日:渔夫在晒网\n",year,month,day);
    system("pause");
}