How to make a program to enter details of N students using array of objects?

CODE

How to make a program to enter details of N students using array of objects?

//Write a program to enter roll no. and marks of students and find total percentage and also find maximum total and minimum percentage….

#include<iostream>

using namespace std;

class stud

{

    int roll;

    float p,c,m,tot,per;

    public:

    void setValue()

    {

        cout<<"\n enter roll no.\n";

        cin>>roll;

        cout<<"\n enter marks of physics,chemistry and maths(out of 100 each):\n";

        cin>>p>>c>>m;

    }

    float pro()

    {

        tot=p+c+m;

        per=tot*100/300;

    }

    float getPer()

    {

        return per;

    }

    float getTot()

    {

        return tot;

    }

};

int main()

{

    int n,i;

    float max,min;

    cout<<"\n enter number of students:";

    cin>>n;

    stud s[n];

    for(i=0;i<n;i++)

    {

        s[i].setValue();

        s[i].pro();

    }

    for(i=0;i<n;i++)

    {

        float tot=s[i].getTot();

        float per=s[i].getPer();

        cout<<"\n"<<i+1<<". total="<<tot<<" ,Percentage="<<per;

    }

    max=s[0].getTot();

    min=s[0].getPer();

    for(i=0;i<n;i++)

    {

        if(max<s[i].getTot())

            max=s[i].getTot();

        if(min>s[i].getPer())

            min=s[i].getPer();

    }

    cout<<"\n maximum total="<<max;

    cout<<"\n minimum percentage="<<min;

}

Output:

enter number of students:3

 enter roll no.

1

 enter marks of physics,chemistry and maths(out of 100 each):

86

96

90

 enter roll no.

2

 enter marks of physics,chemistry and maths(out of 100 each):

78

89

95

 enter roll no.

3

 enter marks of physics,chemistry and maths(out of 100 each):

99

100

100

1. total=272 ,Percentage=90.6667

2. total=262 ,Percentage=87.3333

3. total=299 ,Percentage=99.6667

 maximum total=299

 minimum percentage=87.3333