Câu 1:
uses crt;
var a: array[1..10] of real;
i: integer; s:real;
begin
clrscr;
for i:=1 to 10 do readln (a[i]);
for i:=1 to 10 do
if a[i]<0 then s:=s+sqr(a[i]);
writeln ('tong binh phuong la: ',s);
readln;
end.
Câu 2:
uses crt;
var a: array[1..100] of integer;
i,n: integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln (a[i]);
for i:=1 to n do
if (a[i]>0) and (a[i] mod 2 =0) then write(a[i],' ');
readln;
end.