题解 | #今年的第几天？#

#include <iostream>
using namespace std;
int IsLeapY(int y){
    if(y%400==0 || (y%4==0 && y%100!=0)) return 1;
    else return 0;
}
int day[2][13]={{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};


int main() {
    int y,m,d;
    while(cin>>y>>m>>d){
        int f=IsLeapY(y);
        int num=0;
        for(int i=1;i<m;i++){
            num+=day[f][i];
        }
        num+=d;
        cout<<num<<endl;
    }

    }