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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;
}
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.
Program HOC24;
var i,d: integer;
a: array[1..6] of real;
begin
for i:=1 to 6 do
begin
write('Nhap diem cua ban thu ',i,': '); readln(a[i]);
end;
write('Diem trung binh tren 6.5 la: ');
for i:=1 to 6 do if a[i]>6.5 then write(a[i]:1:1,' ');
writeln;
d:=0;
for i:=1 to 6 do if a[i]<5 then d:=d+1;
write('Co ',d,' ban it hon 5 diem');
readln
end.
uses crt;
var a:array[1..6]of integer;
i,dem:integer;
begin
clrscr;
for i:=1 to 6 do
begin
write('Nhap diem cua ban thu ',i,' la: '); readln(a[i]);
end;
for i:=1 to 6 do
if a[i]>6.5 then write(a[i]:4);
writeln;
dem:=0;
for i:=1 to 6 do
if a[i]<5 then inc(dem);
writeln(dem);
readln;
end.
uses crt;
var a,b,c,tb:array[1..10]of real;
ln,nn:real;
n:integer;
i:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i],b[i],c[i]);
for i:=1 to n do
tb[i]:=(a[i]+b[i]+c[i])/3;
for i:=1 to n do
writeln(tb[i]:4:2);
readln;
end.
