模拟（

我不行了 因为少开了1的空间查了一小时的错555

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=2305814,year_400=146097;
int q,mon[13]={-1,31,28,31,30,31,30,31,31,30,31,30,31},DAY[N],MON[N],YEAR[N],BC[N],DAYG[year_400],MONG[year_400],YEARG[year_400];
bool check(int year){
    if(year<=1582){
        if(year<0) year++;
        return year%4==0;
    }
    return (year%4==0&&year%100!=0)||year%400==0;
}
void initjuli(){
    int year=-4713,month=1,day=0;
    for(int i=0;i<=N;i++){
        int mon_day=mon[month]+(month==2&&check(year));
        day++;
        if(day>mon_day){
            month++;
            day=1;
        }
        if(month>12){
            month=1;
            year++;
        }
        if(year==0) year=1;
        if(year==1582&&month==10&&day==5) day=15;
        YEAR[i]=abs(year),MON[i]=month,DAY[i]=day,BC[i]=(year<0);
    }
}
void initgre(){
    int year=1601,month=1,day=0;
    for(int i=0;i<year_400;i++){
        int mon_day=mon[month]+(month==2&&check(year));
        day++;
        if(day>mon_day){
            month++;
            day=1;
        }
        if(month>12){
            month=1;
            year++;
        }
        YEARG[i]=abs(year)-1600,MONG[i]=month,DAYG[i]=day;
    }
}
signed main(){
    initjuli();
    initgre();
    cin>>q;
    while(q--){
        int r;
        cin>>r;
        if(r<N){
            cout<<DAY[r]<<" "<<MON[r]<<" "<<YEAR[r]<<" ";
            if(BC[r]) cout<<"BC";
        }
        else{
            r-=N;
            int year=1600+400*(r/year_400);
            r%=year_400;
            year+=YEARG[r];
            int day=DAYG[r],month=MONG[r];
            cout<<day<<" "<<month<<" "<<year;
        }
        cout<<endl;
    }
    return 0;
}