今年的第几天？

#include <iostream>
#include <string>
using namespace std;
int main()
{

    int year, month, day;
    int days[12] = { 31, 30, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
    while (cin >> year >> month >> day)
    {
        //判断二月有多少天
        if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
        {
            days[1] = 29;
        }
        else
        {
            days[1] = 28;
        }
        int out=0;
        for (int i = 1; i < month;i++)
        {
            out += days[i-1];
        }
        cout << (out + day) << endl;

    }

    return 0;
}