#include <iostream>
using namespace std;
int main() {
float diem;
cout << "Nhap diem trung binh: ";
cin >> diem;
if (diem >= 8.0)
cout << "Gioi\n";
else if (diem >= 6.5)
cout << "Kha\n";
else if (diem >= 5.0)
cout << "Trung binh/n";
else
cout << "yeu\n";
return 0;
}
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