var
i, c : byte;
t : integer;
begin
c := 0;
for i := 1 to 10 do
begin
read (t);
if t mod 2 = 0 then inc (c);
end;
writeln (c);
end.
var
n, i : integer;
begin
read (n);
for i := 100 to 999 do
if i mod 10 + i div 10 mod 10 + i div 100 = n then writeln (i);
end.
var
i : integer;
begin
for i := 100 to 999 do
if i mod 10 = i div 100 then writeln (i);
end.
Ответ:
1101 (2) -> 1*2^0 + 2^2+2^3 = 1+4+8 = 13
8 (16) -> 8 (10)
13 + 8 = 21
21 (10) -> 10101 (2)