#include <iostream>
using namespace std;
int main() {
    int n,a[100],b[100];
    cout << "Nhap so hs: ";
    cin >> n;
    for (int i=0; i<n; i++) {
        cout << "Diem toan hs thu " << i+1 << ": ";
        cin >> a[i];
        cout << "Diem van hs thu " << i+1 << ": ";
        cin >> b[i];
    }
    cout << "Diem trung binh tung hs: \n";
    for (int i=0; i<n; i++) {
        cout << "HS thu " << i+1 << ": " << (a[i]+b[i])/2 << "\n";
    }
}

#include <iostream>

using namespace std;

int main()

{

    float a[50], b[50], n, T;

    cout << "Nhap so HS = ";

    cin >> n;

    for (int i = 1; i <= n; i++){

        cout << "Nhap diem Toan va Ngu Van HS " << i << " = ";

        cin >> a[i] >> b[i];

    }

    for (int i = 1; i <= n; i++){

        T = (a[i] + b[i]) / 2;

        cout << "Diem trung bin HS " << i << " = " << T << endl;

    }

    return 0;

}