#mình gửi code nhá 

#code pascal

program tinhdiem;

uses crt;

var td,tbm,a,b,c : real;

begin

clrscr;

write('nhap diem 1 : '); readln(a);

write('nhap diem 2 : '); readln(b);

write('nhap diem 3 : '); readln(c);

td:=a+b+c;

writeln('tong diem la : ',td:5:2);

tbm:=td/3;

writeln('trung binh mon la : ',tbm:3:2);

if td>=24.0 then

writeln('GIOI')

else if(td >=19.5) and (td<24.0) then

writeln('KHA')

else if(td>=15.0) and (td<19.5) then

writeln('TRUNG BINH')

else if(td>=10.5) and (td<15.0) then

writeln('YEU')

else

writeln('KEM');

readln

end.

#code c++

#include <bits/stdc++.h>
using namespace std;

int main()
{
    float a,b,c,td=0,tbm=0;
    cout<<"nhap diem 3 mon : ";
    cin>>a>>b>>c;
    td=a+b+c;
    cout<<"diem tong la : " <<td<<"\n";
    tbm=td/3;
    cout<<fixed<<setprecision(2)<<"diem trung binh mon la : " <<tbm<<"\n";
    if(td>=24.0)
        cout<<"GIOI";
    else if(td>=19.5 && td<24.0)
        cout<<"KHA";
    else if(td>=15.0 && td<19.5)
        cout<<"TRUNG BINH";
    else if(td>=10.5 && td<15.0)
        cout<<"YEU";
    else
        cout<<"KEM";
}

#nếu sai sót thì cmt lại cho mình nhá . Nhớ vote 5 sao nhá