uses crt;

var i,n:byte;Max:real;

a:array[1..50]of real;

begin

clrscr;

write('nhap so hoc sinh cua lop:');readln(n);

for i:=1 to n do

begin

  write('nhap diem trung binh mon tin cho hoc sinh thu ',i,':');readln(a[i]);

end;

max:=a[1];

for i:=1 to n do

if max<a[i] then max:=a[i];

writeln('diem trung binh mon tin cao nhat la: ',Max:0:1);

readln;

end.