提交记录 #472

#include<stdio.h>
int limitp[4][10]={
    {3,8,4,9,5,0,1,6,2,7},
    {2,7,3,8,4,9,5,0,1,6},
    {1,6,2,7,3,8,4,9,5,0},
    {5,0,1,6,2,7,3,8,4,9}
};
int calculate_days(int year,int month,int day){
    int days_in_m[]={31,28,31,30,31,30,31,31,30,31,30,31};
    int days=0;
    for (int y=2012;y<year;y++){
        days+=(y%4==0&&y%100!=0)||(y%400==0)?366:365;        
    }
    for (int m=1;m<month;m++){
        days+=days_in_m[m-1];
        if (m==2&&((year%4==0&&year%100!=0)||(year%400==0))){
            days+=1;
        }
    }
    days+=day-9;
    return days;
}
 void calculate_limit(int days){
     int l=91;
     int index=(days/l)%4;
     int day_index=days%5;
     printf("%d and %d.\n",limitp[index][day_index],limitp[index][day_index+1]);
 }
 int main(){
     int year,month,day;
     scanf("%d%d%d",&year,&month,&day);
     int days=calculate_days(year,month,day);
     calculate_limit(days);
     
     return 0; }