救…程序为什么不能正常运行d(ŐдŐ๑)

#include<iostream>
using namespace std;
class Leapyear{
    public:
      void SetDate(int y,int m,int d){
            year=y;
            month = m;
            day = d;
    
        }
       void IsLeapYear(){
            if((year%4==0&&year%100!=0)||(year%400==0))
             cout<<"1"<<endl;
           else
           cout<<"0"<<endl;
               
}
     private:
         int year,month,day;
}; 
int main(){
    int a,b,c,d,e,f;
    cin>>a>>b>>c>>d>>e>>f;
    Leapyear date1;
    Leapyear date2;
    Leapyear* p;
    *p=date2;
    date1.SetDate(a,b,c);
   date1.IsLeapYear();
     p->SetDate(d,e,f);
    p->IsLeapYear();
      
}

27、28行错误了。p指针都没分配空间，是不能进行赋值的
改成Leapyear *p = &date2;