Start: Jun, 26, 2019 08:30:00
2019年度暑期短学期第一天
End: Jun, 26, 2019 11:30:00
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Problem_ID: C
Result: Accepted
Time: 5ms
Memory: 1092kB
Author: 2018212212140
In contest: 1273

#include<stdio.h>
#include<math.h>
int main()
{
	int year,month,day,x,y,c,w;
	while(scanf("%d %d %d",&year,&month,&day)!=EOF)
	{
		if(month<3)
		{
			month=12+month;
			year=year-1;
		}
		y=year%100;
		c=year/100;
		if(year>1582)
		{
			w=y+(y/4)+(c/4)-2*c+(26*(month+1)/10)+day-1;
		}
		else if(year<1582)
		{
			w=y+y/4+c/4-2*c+13*(month+1)/5+day+2;
		}
		else if(year==1582&&month<10)
		{
			w=y+y/4+c/4-2*c+13*(month+1)/5+day+2;
		}
		else if(year==1582&&month>10)
		{
			w=y+(y/4)+(c/4)-2*c+(26*(month+1)/10)+day-1;
		}
		else if(year==1582&&month==10&&day>4)
		{
			w=y+(y/4)+(c/4)-2*c+(26*(month+1)/10)+day-1;
		}
		else if(year==1582&&month==10&&day<=4)
		{
			w=y+y/4+c/4-2*c+13*(month+1)/5+day+2;
		}
		x=(w%7+7)%7;
		if(x==1)
		{
			printf("Monday\n");
		}
		if(x==2)
		{
			printf("Tuesday\n");
		}
		if(x==3)
		{
			printf("Wednesday\n");
		}
		if(x==4)
		{
			printf("Thursday\n");
		}
		if(x==5)
		{
			printf("Friday\n");
		}
		if(x==6)
		{
			printf("Saturday\n");
		}
		if(x==0)
		{
			printf("Sunday\n");
		}
	}
}