#include <iostream>
#include <stdlib.h>
using namespace std;
int main(){
system("cls");
char diem;
cout << "Moi ban nhap vao diem: ";
cin >> diem;
switch (diem)
{
case 'A':
cout << "Diem xuat sac" << endl;
break;
case 'B':
cout << "Diem kha" << endl;
break;
case 'C':
cout << "Diem trung binh" << endl;
break;
case 'D':
cout << "Diem yeu" << endl;
break;
default:
cout << "Du lieu khong hop le" << endl;
break;
}
}
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