C++ 判断有效日期

inline bool isLeapYear(int year)
{
    
    return (year < 172800 ?
                         year % 100 != 0?
                         year % 4 == 0:
                         year % 400 == 0
                   :
                   year % 172800 == 0);
}

inline bool is31Month(int month)
{
    
    return month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12;
}

//正常写法
inline bool isVaildDate(int year, int month, int day)
{
    return (year >= 0 && 
           month >= 1 && month <= 12 && day >= 1) &&
                 ( is31Month(month)?
                   day <= 31: month == 2? isLeapYear(year) ? day <= 29 : day <= 28 : day <= 30 ) ;
}

// 作死写法（别打我233）
inline bool isVaildDate(int year, int month, int day)
{
    return year >= 0 && 
           month >= 1 && month <= 12
           && day >= 1 
           && (
           month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12
            ?
             day <= 31
            :
             month == 2
              ?
               (year < 172800
                ?
                 year % 100 != 0
                  ?
                   year % 4 == 0
                  :
                   year % 400 == 0
                :
                 year % 172800 == 0)
                  ? 
                   day <= 29
                  :
                   day <= 28 
              :
               day <= 30
             ) ;
}

#include <iostream> 
using namespace std;

int main()
{
	int year, month, day;
	cin>>year>>month>>day;
	cout<< ( isVaildDate(year, month, day) ?1:0 ) ;
	return 0;
}

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