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#include <bits/stdc++.h>
using namespace std;
double a,b,c,tb;
int main()
{
cin>>a>>b>>c;
tb=(a+b+c)/3;
cout<<fixed<<setprecision(1)<<tb<<endl;
if (tb>=8) cout<<"Gioi";
else if ((6.5<=tb) and (tb<8)) cout<<"Kha";
else if ((5<=tb) and (tb<=6.5)) cout<<"Trung Binh";
else cout<<"Chua dat";
return 0;
}
uses crt;
var a:array[1..14]of real;
i,n:integer;
t:real;
begin
clrscr;
write('Nhap so mon hoc='); readln(n);
for i:=1 to n do
begin
repeat
write('A[',i,']='); readln(a[i]);
until (0<=a[i]) and (a[i]<=10);
end;
for i:=1 to n do
write(a[i]:4:2,' ');
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln('Diem trung binh mon la: ',t/n:4:2);
if t>=5 then writeln('Duoc len lop')
else writeln('Thi lai');
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n,tb:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
tb:=0;
i:=1;
while i<=n do
begin
tb:=tb+a[i];
inc(i);
end;
writeln(tb/n:4:2);
readln;
end.
uses crt;
var a,b,c,tb:array[1..100]of real;
i,n:integer;
begin
clrscr;
n:=5;
for i:=1 to n do
begin
readln(a[i],b[i],c[i]);
end;
for i:=1 to n do
tb[i]:=(a[i]+b[i]+c[i])/3;
for i:=1 to n do
writeln('Diem trung binh cua ban thu ',i,' la: ',tb[i]:4:2);
readln;
end.
var t,dt,a,tb: real;
begin
write('Nhap diem mon Toan: '); readln(t);
write('nhap diem mon Tin: '); readln(dt);
write('Nhap diem mon Anh: '); readln(a);
if (a<=0) or (a>=10) or (t<=0) or (t>=10) or (dt<=0) or (dt>=10) then
repeat
writeln('Khong hop le, nhap lai: ');
write('Nhap diem mon Toan: '); readln(t);
write('nhap diem mon Tin: '); readln(dt);
write('Nhap diem mon Anh: '); readln(a);
until (a>=0) and (a<=10) and (t>=0) and (t<=10) and (dt>=0) and (dt<=10);
tb:=(t+dt+a)/3;
writeln('Diem trung binh: ',tb:2:1);
if (dt>=6.5) and (t>=6.5) and (a>=6.5) and (tb>=8) then writeln('Gioi') else
if (dt>=5) and (t>=5) and (a>=5) and (tb>=6.5) then writeln('Kha') else writeln('Trung binh');
end.
uses crt;
var toan,tin,anh,tb:real;
kt:integer;
begin
clrscr;
repeat
write('Nhap diem Toan:'); readln(toan);
write('Nhap diem Tin:'); readln(tin);
write('Nhap diem Anh:'); readln(anh);
until (0<=toan) and (toan<=10) and (0<=tin) and (tin<=10) and (0<=anh) and (anh<=10);
tb:=(toan+tin+anh)/3;
writeln('Diem trung binh cua 3 mon la: ',tb:4:2);
kt:=0;
if (tb>=8) and (toan>=6.5) and (tin>=6.5) and (anh>=6.5) then kt:=1;
if (6.5<=tb) and (tb<8) and (5<=toan) and (toan<6.5) and (5<=tin) and (tin<6.5) and (5<=anh) and (anh<6.5) then kt:=2;
if kt=0 then writeln('Hoc sinh trung binh');
if kt=1 then writeln('Hoc sinh gioi');
if kt=2 then writeln('Hoc sinh kha');
readln;
end.