这个代码只过了两个点，不能AC，这题非常恶心

#include<bits/stdc++.h>
using namespace std;
int month[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

int is_leap(int year) {
    if((year % 400 == 0) || (year % 4 == 0 && year % 100 != 0)) return 1;
    else return 0;

}

bool is_leap_ru(int year, bool before) {
    if(before && (year - 1) % 4 == 0) return 1;
    else if((!before) && year % 4 == 0) return 1;
    else return 0;
}

bool deal(int &year, int &m, int &d, bool spe_year) {

}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n, num;
    cin >> n;
    while(n--) {
        //现在是公元前
        int year = 4713;
        bool before = true;
        cin >> num;
        while(year > 0 && num >= is_leap_ru(year, before) + 365) {
            year--;
            num -= (is_leap_ru(year, before) + 365);
        }

        //到了公元年
        if(year == 0) {
            year = 1;
            before = false;
            while(year < 1582 && num >= is_leap_ru(year, before) + 365) {
                year++;
                num -= (is_leap_ru(year, before) + 365);
            }

            //到了格里高利历
            if(year == 1582 && num >= 355) {
                year++;
                num -= 355;
            }

            while(year > 1582 && num >= (is_leap(year) + 365)) {
                year++;
                num -= (is_leap(year) + 365);
            }
        }

        int m = 1, d = 1;
        if(before) {
            for(int i = 1; i <= 12; i++) {
                if(i == 2 && num >= is_leap_ru(year, before) + month[i]) num -= (is_leap_ru(year, before) + month[i]);
                else if(i != 2 && num >= month[i]) num -= month[i];
                else {
                    m = i;
                    break;
                }
            }
            d += num;
            cout << d << " " << m << " " << year << " BC" << endl;
        }else {
            d = 0;
            if(year < 1582) {
                for(int i = 1; i <= 12; i++) {
                    if(i == 2 && num >= is_leap_ru(year, before) + month[i]) num -= (is_leap_ru(year, before) + month[i]);
                    else if(i != 2 && num >= month[i]) num -= month[i];
                    else {
                        m = i;
                        break;
                    }
                }
                d += num;
                cout << d << " " << m << " " << year << endl;
            }else if(year == 1582) {
                for(int i = 1; i <= 12; i++) {
                    if(i == 2 && num >= is_leap(year) + month[i]) num -= (is_leap(year) + month[i]);
                    else if(i == 10 && num >= (month[i] - 10)) num -= (month[i] - 10);
                    else if(i != 2 && i != 10 && num >= month[i]) num -= month[i];
                    else {
                        m = i;
                        break;
                    }
                }
                d += num;
                cout << d << " " << m << " " << year << endl;
            }else if(year > 1582) {
                for(int i = 1; i <= 12; i++) {
                    if(i == 2 && num >= is_leap(year) + month[i]) num -= (is_leap(year) + month[i]);
                    else if(i != 2 && num >= month[i]) num -= month[i];
                    else {
                        m = i;
                        break;
                    }
                }
                d += num;
                cout << d << " " << m << " " << year << endl;
            }
        }

    }
    return 0;
}