câu 2
a) for i:=1 to 50 do writeln('*');
b) var A:array[1..20] of integer;
câu 3:
program ct;
uses crt;
var Min,i:integer;
A:array[1..10] of integer;
begin
clrscr;
for i:=1 to 10 do
begin
write('nhap mang A[',i,']:=');readln(A[i]);
end;
Min:=A[1];
for i:=2 to 10 do
if Min>A[i] then Min:=A[i];
writeln('gia tri nho nhat la:',Min);
readln
end.