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: 2018212212198
In contest: 1273

#include<stdio.h>
int day(int x,int b,int z);
int main()
{
	int a,b,c;
	while(scanf("%d %d %d",&a,&b,&c)!=EOF){
		
		switch(day(a,b,c)){
			case 1:
				printf("Monday\n");
				break;
			case 2:
				printf("Tuesday\n");
				break;
			case 3:
				printf("Wednesday\n");
				break;
			case 4:
				printf("Thursday\n");
				break;
			case 5:
				printf("Friday\n");
				break;
			case 6:
				printf("Saturday\n");
				break;
			case 0:
				printf("Sunday\n");
				break;
				
		}
		
	}
	
}
int day(int x,int b,int z){
	int c,y,m,d,n;
	
	m=b;
	if(m<=2){
		m=m+12;
		x--;
	}
	c=x/100;
	y=x%100;
	d=z;
	
	n=y+y/4+c/4-2*c+26*(m+1)/10+d-1;
	n=(n%7+7)%7;//蔡勒公式 
	return n;
}