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  1. #include <iostream>
  2. #include <stdlib.h>
  3.  
  4. using namespace std;
  5.  
  6. int main(){
  7. system("cls");
  8. char diem;
  9. cout << "Moi ban nhap vao diem: ";
  10. cin >> diem;
  11.  
  12. switch (diem)
  13. {
  14. case 'A':
  15. cout << "Diem xuat sac" << endl;
  16. break;
  17. case 'B':
  18. cout << "Diem kha" << endl;
  19. break;
  20. case 'C':
  21. cout << "Diem trung binh" << endl;
  22. break;
  23. case 'D':
  24. cout << "Diem yeu" << endl;
  25. break;
  26.  
  27. default:
  28. cout << "Du lieu khong hop le" << endl;
  29. break;
  30. }
  31. }
Success #stdin #stdout #stderr 0.01s 5284KB
stdin
D
stdout
Moi ban nhap vao diem: Diem yeu
stderr
sh: 1: cls: not found