题解 | #Day of Week#

#include <iostream>
using namespace std;
//公元元年是0001年
int p[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
string q[13]={"a","January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November","December"};
string r[7]={"Sunday","Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
int Run(int k)
{
    if((k%400==0)||((k%4==0)&&(k%100!=0)))return 1;
    else return 0;
}
int main() {
    int d, y;
    string b;
    int m;
    while (cin >> d >> b >> y) { 
        for(int i=1;i<=12;i++)
        {
            if(b==q[i]){
                m=i;
                break;
            }
        }

    int sum1=0;//这里一定要清零，否则除了第一行测试用例，其他测试用例都是错的
    for(int i=1;i<=y-1;i++)
    {
        if(Run(i)==1)sum1+=366;
        else sum1+=365;
    }
    if(Run(y)==1)p[2]=29;
    else p[2]=28;
    for(int i=1;i<=m-1;i++)
    {
        sum1+=p[i];
    }
    sum1+=d;
    sum1%=7;
    
    cout<<r[sum1]<<endl;


    }
}