Bài 2 :
a)
Program So_lon_va_be_nhat;
var a,b,c,min,max : Integer;
writelṇ̣̣('nhap vao a: ');
readln(a);
writelṇ̣̣('nhap vao b: ');
readln(b);
writelṇ̣̣('nhap vao c: ');
readln(c);
min:=a;
if min>b then min:=b;
if min>c then min:=c;
max:=a;
if max<b then max:=b;
if max<c then max:=c;
writeln('so be nhat la',min);
writeln('so lon nhat la',max);
readln;
End.