#include<iostream>
using namespace std;
const int SLEN=30;
struct student
{
    char fullname[SLEN];
    char hobby[SLEN];
    int ooplevel;
};
int getinfo(student pa[],int n);
void display1(student st);
void display2(const student* ps);
void display3(student pa[],int n);
int main()
{
    cout<<"Enter class size: ";
    int class_size;
    cin>>class_size;
    while(cin.get()!='\n')
        continue;
    student* ptr_stu=new student[class_size];
    int entered=getinfo(ptr_stu,class_size);
    for(int i=0;i<entered;i++)
    {
        display1(ptr_stu[i]);
        display2(&ptr_stu[i]);
    }
    display3(ptr_stu,entered);
    delete [] ptr_stu;
    return 0;
}
int getinfo(student pa[],int n)
{
    int i;
    for(i=0;i<n;i++)
    {
        cout<<"Enter element # "<<i+1<<":\n";
        cout<<"Enter student's fullname:";
        while(cin.get()!='\n')
        continue;
        cin.getline(pa[i].fullname,SLEN);
        cin.getline(pa[i].fullname,SLEN);
        cout<<"Enter student's hobby:";
        cin.getline(pa[i].hobby,SLEN);
        cout<<"Enter student's ooplevel:";
        cin>>pa[i].ooplevel;
    }
    return i;
}
void display1(student st)
{
    cout<<"============================\n";
    cout<<"student's fullname="<<st.fullname<<endl;
    cout<<"student's hobby="<<st.hobby<<endl;
    cout<<"student's ooplevel="<<st.ooplevel<<endl;
    cout<<"============================\n";
}
void display2(const student* ps)
{
    cout<<"============================\n";
    cout<<"student's fullname="<<ps->fullname<<endl;
    cout<<"student's hobby="<<ps->hobby<<endl;
    cout<<"student's ooplevel="<<ps->ooplevel<<endl;
    cout<<"============================\n";
}
void display3(student pa[],int n)
{
    cout<<"============================\n";
    for(int i=0;i<n;i++)
       {
          cout<<"student's fullname="<<pa[i].fullname<<endl;
          cout<<"student's hobby="<<pa[i].hobby<<endl;
          cout<<"student's ooplevel="<<pa[i].ooplevel<<endl;
       }
    cout<<"============================\n";
}