// Program to generate report-format for Student data using structures.
// Assignment-14
// stustrrep.cpp, Author - Krishna Kumar Khatri.

// Uncomment ONLY the following line if you are using Turbo/Borland compiler.
// #define TC
#ifdef TC
	#include <iostream.h>
	#include <iomanip.h>
#else
	#include <iostream>
	#include <iomanip>
	using namespace std;
#endif
#include <conio.h>  // For getch.
const int MAXLEN = 50;

struct Student {
    long int rollno;
    char name[MAXLEN];
    char branch[MAXLEN/2];
    float obtndmarks;
};

void read_data(Student& st)
{
    char tmpstr[MAXLEN];
    
    cout << "\nRoll no.: "; cin >> st.rollno;
    cout << flush;  // Emptying buffer.
    cout << "Name: "; cin.get(st.name, MAXLEN);
    cout << flush;  // Emptying buffer.
    cout << "Branch: "; cin.get(st.branch, MAXLEN / 2);
    cout << flush;  // Emptying buffer.
    cout << "Marks(%): "; cin >> st.obtndmarks;
}

void display_report(Student st[], const int& size)
{
    int i;

    cout << endl << "REPORT" << endl;
    cout << "======" << endl;
    cout << "Roll no Name                Branch        Marks(%)\n";
    cout << "------- ------------------- ------------- --------\n";
    for (i = 0; i < size; i++) {
        cout << setw(7) << setiosflags(ios::left) << st[i].rollno << " ";
        cout << setw(19) << st[i].name << " ";
        cout << setw(13) << st[i].branch << " ";
        cout << st[i].obtndmarks << endl;
    }
}

int main()
{
    #ifdef TC
        clrscr();
    #endif
    Student* st;
    int n, i;
    
    do {
        cout << "How many students (1-" << MAXLEN / 5 << "): ";
        cin >> n;
    } while (n < 1 || n > MAXLEN / 5);
    st = new Student[n];
    
    for (i = 0; i < n; i++)
        read_data(st[i]);
    display_report(st, n);

    cout << endl << endl << "Program over. Press any key to exit...";
    getch();
    return 0; // Successful termination.
}