View Code of Problem 81

#include <iostream>
#include <cmath>
#include <cstring>
#include <algorithm>
#define ISYEAR(x) (x%400==0||(x%4==0&&x%100!=0))?1:0
using namespace std;
struct date{
    int year,month,day;

};

int md[13][2]={
0,0,
31,31,
28,29,
31,31,
30,30,
31,31,
30,30,
31,31,
31,31,
30,30,
31,31,
30,30,
31,31
};

int main(){
    date dat;
    cin>>dat.year>>dat.month>>dat.day;
    int s=0;
    for(int i=0;i<dat.month;i++){
        s+=md[i][ISYEAR(dat.year)];
    }
    s+=dat.day;
    cout<<s<<endl;
    return 0;
}