Bài 1_ Uses crt;
Var a,b:array[1..100]of integer;
i,n,j,m:integer;
begin clrscr;
write(‘nhap so phan tu la n=’);readln(n);
for i:=1 to n do
begin
write(‘a[‘,i,’]=’);readln(a[i]);
end;
writeln(‘tung phan tu cua mang chuyen ve he nhi phan la:’);
for i:=1 to n do
begin
j:=1...