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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. if (diem == 'A')
  13. {
  14.  
  15. cout << "Diem xuat sac" << endl;
  16. }else if(diem == 'B') {
  17.  
  18. cout << "Diem kha" << endl;
  19. }else if(diem == 'C'){
  20.  
  21. cout << "Diem trung binh" << endl;
  22. }else if(diem == 'D'){
  23.  
  24. cout << "Diem yeu" << endl;
  25. }else{
  26. cout << "Du lieu khong hop le" << endl;
  27. }
  28. }
Success #stdin #stdout #stderr 0.01s 5304KB
stdin
Standard input is empty
stdout
Moi ban nhap vao diem: Du lieu khong hop le
stderr
sh: 1: cls: not found