include <bits/stdc++.h>
using namespace std;
int main(){
int i, N;
cout<<"Nhap so hoc sinh trong lop, N=";
cin>>N;
float A[N];
int Gioi = 0; int Kha = 0; int Trungbinh = 0; int Kem =0;
for (int i=0;i<N;i++){
cout<<"Diem cua hoc sinh thu "<<i<<"=";
cin>>A[i];
}
for (int i=0;i<N;i++){
if(A[i]>=8){
Gioi+=1;}
}
if(A[i]<8&&A[i]>=6.5){
Kha+=1;}
if(A[i]>=5&&A[i]<6.5){
Trungbinh+=1;}
if(A[i]<5){
Kem+=1;}
cout<<"Ket qua hoc tap: \n"<<Gioi<<"ban hoc gioi\n"<<Kha<<"ban hoc kha\n"<<Trungbinh<<"ban hoc trung binh\n"<<Kem<<"ban hoc kem.";
return 0;
}
